759 + Mcqs in Average Page 6 McqOptions

251.	A person purchase 1 kg of tomatoes from each of the 4 places at the rate of 1 kg, 2 kg, 3 kg, 4 kg per rupee respectively. On an average, he has purchased x kg of tomatoes per rupee. Then the value of x is-
A.	s. 1.92
B.	s. 2
C.	s. 2.50
D.	one of these
Answer» B. s. 2

Discussion

252.	A motorist travels to a place 150 km away at an average speed of 50 km/hr and returns at 30 km/ hr. His average speed for the whole journey in km/hr is-
A.	5 km/hr
B.	7 km/hr
C.	7.5 km/hr
D.	0 km/hr
Answer» D. 0 km/hr

Discussion

253.	The captain of a cricket team of 11 members is 26 years old and the wicket keeper is 3 years older. If the ages of these two are excluded, the average age of the remaining players is one year less than the average of the whole team. What is the average age of the team?
A.	3 years
B.	4 years
C.	5 years
D.	one of these
Answer» B. 4 years

Discussion

254.	The average weight of 45 students in a class is 52 kg. Five of them whose average weight is 48 kg leave the class and other 5 students whose average weight is 54 kg join the class. What is the new average weight (in kg) of the class?
A.	$52\frac{1}{3}$$
B.	$52\frac{1}{2}$$
C.	$52\frac{2}{3}$$
D.	one of these
Answer» D. one of these

Discussion

255.	The average age of seven boys sitting in a row facing North is 26 years. If the average age of the first three boys is 19 years and the average age of the last three boys is 32 years, what is the age of the boy who is sitting in the middle of the row?
A.	4 years
B.	8 years
C.	9 years
D.	1 years
Answer» D. 1 years

Discussion

256.	A family consists of grandparents, parents and three grandchildren. The average age of the grandparents is 67 years that of the parents is 35 years and that of the grandchildren is 6 years. What is the average age of the family?
A.	$28\frac{4}{7}{\text{ years}}$$
B.	$31\frac{5}{7}{\text{ years}}$$
C.	$32\frac{1}{7}{\text{ years}}$$
D.	one of these
Answer» C. $32\frac{1}{7}{\text{ years}}$$

Discussion

257.	The average of 4 positive integers is 59. The highest integer is 83 and the lowest integer is 29. The difference between the remaining two integers is 28. Which of the following integers is higher of the remaining two integers ?
A.	9
B.	8
C.	6
D.	annot be determined
E.	one of these
Answer» D. annot be determined

Discussion

258.	There are five boxes in a cargo hold. The weight of the first box is 200 kg and the weight of the second box is 20% more than the weight of third box, whose weight is 25% morethan the first box’s weight. The fourth box at 350 kg is 30% lighter than the fifth box. The difference in the average weight of the four heaviest boxes and the four lightest boxes is-
A.	7.5 kg
B.	1.5 kg
C.	5 kg
D.	12.5 kg
Answer» D. 12.5 kg

Discussion

259.	The body weight of seven students of a class is recorded as 54 kg, 78 kg, 43 kg, 82 kg, 67 kg, 42 kg and 75 kg. What is the average body weight of call the seven students?
A.	3 kg
B.	9 kg
C.	41 kg
D.	3 kg
E.	one of these
Answer» B. 9 kg

Discussion

260.	My Scooty gives an average of 40 kmpl of petrol. But after recent filling at the new petrol pump, its average dropped to 38 kmpl. I investigated and found out that it was due to adulterated petrol. Petrol pimps add kerosene, which is $$\frac{2}{3}$$cheaper than petrol, to increase their profits. Kerosene generates excessive smoke and knocking and gives an average of 18 km per 900 ml. If I paid Rs. 30 for a litre of petrol, What was the additional amount the pump-owner was making?
A.	s. 1.75
B.	s. 1.80
C.	s. 2
D.	s. 2.30
Answer» D. s. 2.30

Discussion

261.	The average of 12 numbers is 15 and the average of the first two is 14. What is the average of the rest?
A.	5
B.	$15\frac{1}{5}$$
C.	4
D.	$14\frac{1}{5}$$
Answer» C. 4

Discussion

262.	Six numbers are arranged in decreasing order. The average of the first five numbers is 30 and the average of the last five numbers is 25. The difference of the first and the last numbers is
A.	0
B.	5
C.
Answer» C.

Discussion

263.	The marks of six boys in a group are 48, 59, 87, 37, 78 and 57. What are the average marks of all six boys?
A.	1
B.	5
C.	9
D.	one of these
Answer» B. 5

Discussion

264.	A pupil's marks were wrongly entered as 83 instead of 63. Due to that the average marks for the class got increased by half $$\frac{1}{2}$$ . The number of pupils in the class is:
A.	0
B.	0
C.	0
D.	3
Answer» D. 3

Discussion

265.	There were 24 students in a class. One of them, who was 18 years old, left the class and his place was filled up by a newcomer. If the average of the class thereby, was lowered by one month, the age of the newcomer is-
A.	4 years
B.	5 years
C.	6 years
D.	7 years
Answer» D. 7 years

Discussion

266.	Average age of ten persons learning yoga is 32 years. When the age of their instructor is added, the average age becomes 34 years. The age of their instructor is-
A.	6 years
B.	2 years
C.	4 years
D.	6 years
Answer» D. 6 years

Discussion

267.	Kunal bought 65 books for Rs. 1050 from one shop and 50 books for Rs. 1020 from another. What is the average price he paid per book?
A.	s. 18
B.	s. 18.20
C.	s. 24
D.	s. 36.40
E.	one of these
Answer» B. s. 18.20

Discussion

268.	The monthly incomes of five persons are Rs. 1132, Rs. 1140, Rs. 1144, Rs. 1136 and Rs. 1148 respectively.What is their arithmetic mean?
A.	s. 1100
B.	s. 1120
C.	s. 1132
D.	s. 1140
Answer» E.

Discussion

269.	The mean monthly salary paid to graduating MBA class of a management institute is Rs. 16000. The mean monthly salary paid to students with work experience is Rs. 18000. The corresponding figure for the students without any work experience is Rs. 12000. Determine the percentage of students with work experience and those without any work experience in the class.
A.	6.67%, 33.33%
B.	3.33%, 66.67%
C.	5%, 25%
D.	5%, 75%
Answer» B. 3.33%, 66.67%

Discussion

270.	The average weight of boys in a class is 30 kg and the average weight of girls in the same class is 20 kg. If the average weight of the whole class is 23.25 kg, what could be the possible strength of boys and girls respectively in the same class?
A.	4 and 26
B.	3 and 27
C.	7 and 17
D.	one of these
Answer» C. 7 and 17

Discussion

271.	Average score of a class of 60 students, in an exam, was 43. Average score of the students who had passed is 52 and the average score of students who had failed is 16. How many failed the exam?
A.	5
B.	0
C.	5
D.	8
Answer» D. 8

Discussion

272.	There are three positive numbers. One third of the average of all the three numbers is 8 less than the value of the highest number. The average of the lowest and the second lowest number is 8. What is the highest number?
A.	1
B.	4
C.	0
Answer» B. 4

Discussion

273.	There are 4 consecutive odd numbers (x1, x2, x3 and x4) and three consecutive even numbers (y1, y2 and y3). The average of the odd numbers is 6 less than the average of the even numbers. If the sum of the three even numbers is 16 less than the sum of the four odd numbers, what is the average of x1, x2, x3 and x4?
A.	0
B.	8
C.	2
D.	4
Answer» E.

Discussion

274.	Of the three numbers, the first is twice the second and the second is twice the third. The average of the reciprocal of the numbers is $$\frac{7}{72}$$ . The numbers are:
A.	6, 8, 4
B.	0, 10, 5
C.	4, 12, 6
D.	6, 18, 9
Answer» D. 6, 18, 9

Discussion

275.	If the average of m numbers is n2and that of n numbers is m2 , then the average of (m + n) numbers is-
A.	- n
B.	n
C.	+ n
D.	$\frac{m}{n}$$
Answer» C. + n

Discussion

276.	The arithmetic mean of 15 numbers is 41.4. Then the sum of these numbers is-
A.	14
B.	20
C.	20
D.	21
Answer» E.

Discussion

277.	The average of the reciprocals of x and y is-
A.	$\frac{(x + y)}{(x - y)}$$
B.	$\frac{(x + y)}{2xy}$$
C.	$\frac{2(x + y)}{xy}$$
D.	$\frac{2xy}{(x + y)}$$
Answer» C. $\frac{2(x + y)}{xy}$$

Discussion

278.	The mean of 5 numbers is 18. If one number is excluded, their mean is 16.Find the excluded number.
A.	5
B.	6
C.	7
D.	8
Answer» C. 7

Discussion

279.	There were 35 students in a hostel. If the number of the students is increased by 7, then the expenses of the mess increased by Rs. 42 per day, while the average expenditure per head diminishes by Rs. 1. The original expenditure of the mess per day was-
A.	s. 400
B.	s. 420
C.	s. 432
D.	s. 442
Answer» C. s. 432

Discussion

280.	The mean monthly salary paid to 75 workers in a factory is Rs. 5680. The mean salary of 25 of them is Rs. 5400 and that of 30 others is Rs. 5700. The mean salary of the remaining workers is-
A.	s. 5000
B.	s. 6000
C.	s. 7000
D.	s. 8000
Answer» C. s. 7000

Discussion

281.	In a cricket eleven, the average age of eleven players is 28 years. Out of these, the average age of three groups of three players each are 25 years, 28 years and 30 years respectively. If in these groups the captain and the youngest player are not included and the captain is eleven years older than the youngest player, what is the age of the captain?
A.	3 years
B.	4 years
C.	5 years
D.	6 years
Answer» D. 6 years

Discussion

282.	A company produces on an average 4000 items per must for the first 3 months. How many items it must produce on an average per month over the next 9 months, to average 4375 items per month over the whole?
A.	500
B.	600
C.	680
D.	710
Answer» B. 600

Discussion

283.	Visitor to a show were charged Rs. 15 each on the first day, Rs. 7.50 each on the second day and Rs. 2.50 each on the third day. The attendance on the three days was in the ratio 2 : 5 : 13. The average charge per person for the whole show was-
A.	s. 5
B.	s. 6.33
C.	s. 7.50
D.	s. 9
Answer» B. s. 6.33

Discussion

284.	A student obtained the following marks in percentage in his semester examination English 50, Maths 65, Statistics 70, Economics 58 and Accountancy 63. The weights of these subjects are 2, 2, 1, 1 and 1 respectively. What is the weighted arithmetic mean?
A.	0
B.	1
C.	2
D.	3
Answer» B. 1

Discussion

285.	The average height of 35 girls in a class was calculated as 160 cm. It was later found that the height of one of the girls in the class was wrongly written as 144 cm, whereas her actual height was 104 cm. What is the actual average height of the girls in the class? ( rounded off to 2 digits after decimal)-
A.	58.54 cm
B.	58.74 cm
C.	59.56 cm
D.	59.86 cm
E.	one of these
Answer» F.

Discussion

286.	The average of 10 numbers is 40.2. Later it is found that two numbers have been wrongly added. The first is 18 greater than the actual number and the second number added is 13 instead of 33. Find the correct average.
A.	0.2
B.	0.4
C.	0.6
D.	0.8
Answer» C. 0.6

Discussion

287.	The average monthly income of a family of four earning members was Rs. 15130. One of the daughters in the family got married and left home, so the average monthly income of the family came down to Rs. 14660. What is the monthly income of the married daughter?
A.	s. 12000
B.	s. 15350
C.	s. 16540
D.	annot be determined
E.	one of these
Answer» D. annot be determined

Discussion

288.	The average height of 25 boys is 1.4 m. When 5 boys leave the group, then the average height increased by 0.15 m. What is the average height of the 5 boys who leave ?
A.	.8 m
B.	.9 m
C.	.95 m
D.	.05 m
Answer» B. .9 m

Discussion

289.	In Arun's opinion, his weight is greater than 65 kg but less than 72 kg. His brother does not agree with Arun and he thinks that Arun's weight is greater than 60 kg but less than 70 kg. His mother's view is that his weight cannot be greater than 68 kg. If all are them are correct in their estimation, what is the average of different probable weights of Arun?
A.	7 kg.
B.	8 kg.
C.	9 kg.
D.	ata inadequate
Answer» B. 8 kg.

Discussion

290.	Of the three numbers, the first is twice the second and the second is twice the third. The average of the reciprocal of the numbers is $$\frac{7}{{72}}$$. The numbers are:
A.	6, 18, 9
B.	4, 12, 6
C.	0, 10, 5
D.	6, 8, 4
Answer» C. 0, 10, 5

Discussion

291.	The average wages of a worker during a fortnight comprising 15 consecutive working days was Rs. 90 per day. During the first 7 days, his average wages was Rs. 87/day and the average wages during the last 7 days was Rs. 92/day. What was his wage on the 8th day?
A.	3
B.	0
C.	2
D.	7
Answer» E.

Discussion

292.	There are three categories of jobs A, B and C. The average salary of the student who got the job of A and B categories is 26 lakh per annum.The average salary of the students who got the job of B and C category is 44 lakh per annum and the average salary of those students who got the job of A and C categories is 34 lakh per annum. The most appropriate (or closet) range of average salary of all the three categories (if it is known that each student gets only one category of jobs i.e. , A, B and C):
A.	ies between 30 and 44
B.	ies between 28 and 34
C.	ies between 34 and 44
D.	ies between 27 and 44
E.	one of these
Answer» B. ies between 28 and 34

Discussion

293.	Ajay working in a Cellular company as a salesman. His monthly salary is Rs. 200. But he gets bonus as per given rule. If he sells sim cards of Rs. X then his bonus will be $$\left[ {{{\left( {\frac{x}{{100}}} \right)}^2} + 10} \right]$$. In the first quarter of the year his average sale was Rs. 3000 per month. In the next 5 five month his average sale was Rs. 5000 per month and for next four month his average sale was Rs. 8000 per month. What is the average earning per month for the whole year?
A.	s. 3350
B.	s. 3610
C.	s. 3750
D.	s. 3560
E.	one of these
Answer» C. s. 3750

Discussion

294.	The average age of three boys is 15 years. If their ages are in ratio 3 : 5 : 7, the age of the youngest boy is
A.	1 years
B.	8 years
C.	5 years
D.	years
E.	2 years
Answer» E. 2 years

Discussion

295.	The average price of 10 books is Rs.12 while the average price of 8 of these books is Rs. 11.75. Of the remaining two books, if the price of one book is 60% more than the price of the other, what is the price of each of these two books?
A.	s. 5, Rs.7.50
B.	s. 8, Rs. 12
C.	s. 10, Rs. 16
D.	s. 12, Rs. 14
Answer» D. s. 12, Rs. 14

Discussion

296.	Average of ten positive numbers is x. If each number is increased by 10%, then x :
A.	emains unchanged
B.	ay decrease
C.	ay increase
D.	s increased by 10%
Answer» E.

Discussion

297.	The average weight of three boys A, B and C is $$\frac{{163}}{3}$$ kg, while the average weight of three boys B, D and E is 53 kg. What is the average weight of A, B, C, D and E?
A.	2.4 kg
B.	3.2 kg
C.	3.8 kg
D.	ata inadequate
Answer» E.

Discussion

298.	Average cost of 5 apples and 4 mangoes is Rs. 36. The average cost of 7 apples and 8 mangoes is Rs. 48. Find the total cost of 24 apples and 24 mangoes.
A.	044
B.	088
C.	20
D.	240
Answer» C. 20

Discussion

299.	The difference between two angles of a triangle is 24°. The average of the same two angles is 54°. Which one of the following is the value of the greatest angle of the triangle?
A.	5°
B.	0°
C.	6°
D.	2°
Answer» E.

Discussion

300.	When a student weighing 45 kgs left a class, the average weight of the remaining 59 students increased by 200g. What is the average weight of the remaining 59 students?
A.	7
B.	6.8
C.	8.2
D.	2.2
Answer» B. 6.8

Discussion

Explore topic-wise MCQs in General Aptitude.

A person purchase 1 kg of tomatoes from each of the 4 places at the rate of 1 kg, 2 kg, 3 kg, 4 kg per rupee respectively. On an average, he has purchased x kg of tomatoes per rupee. Then the value of x is-

A motorist travels to a place 150 km away at an average speed of 50 km/hr and returns at 30 km/ hr. His average speed for the whole journey in km/hr is-

The captain of a cricket team of 11 members is 26 years old and the wicket keeper is 3 years older. If the ages of these two are excluded, the average age of the remaining players is one year less than the average of the whole team. What is the average age of the team?

The average weight of 45 students in a class is 52 kg. Five of them whose average weight is 48 kg leave the class and other 5 students whose average weight is 54 kg join the class. What is the new average weight (in kg) of the class?

The average age of seven boys sitting in a row facing North is 26 years. If the average age of the first three boys is 19 years and the average age of the last three boys is 32 years, what is the age of the boy who is sitting in the middle of the row?

A family consists of grandparents, parents and three grandchildren. The average age of the grandparents is 67 years that of the parents is 35 years and that of the grandchildren is 6 years. What is the average age of the family?

The average of 4 positive integers is 59. The highest integer is 83 and the lowest integer is 29. The difference between the remaining two integers is 28. Which of the following integers is higher of the remaining two integers ?

The body weight of seven students of a class is recorded as 54 kg, 78 kg, 43 kg, 82 kg, 67 kg, 42 kg and 75 kg. What is the average body weight of call the seven students?

The average of 12 numbers is 15 and the average of the first two is 14. What is the average of the rest?

Six numbers are arranged in decreasing order. The average of the first five numbers is 30 and the average of the last five numbers is 25. The difference of the first and the last numbers is

The marks of six boys in a group are 48, 59, 87, 37, 78 and 57. What are the average marks of all six boys?

A pupil's marks were wrongly entered as 83 instead of 63. Due to that the average marks for the class got increased by half $$\frac{1}{2}$$ . The number of pupils in the class is:

There were 24 students in a class. One of them, who was 18 years old, left the class and his place was filled up by a newcomer. If the average of the class thereby, was lowered by one month, the age of the newcomer is-

Average age of ten persons learning yoga is 32 years. When the age of their instructor is added, the average age becomes 34 years. The age of their instructor is-

Kunal bought 65 books for Rs. 1050 from one shop and 50 books for Rs. 1020 from another. What is the average price he paid per book?

The monthly incomes of five persons are Rs. 1132, Rs. 1140, Rs. 1144, Rs. 1136 and Rs. 1148 respectively.What is their arithmetic mean?

The average weight of boys in a class is 30 kg and the average weight of girls in the same class is 20 kg. If the average weight of the whole class is 23.25 kg, what could be the possible strength of boys and girls respectively in the same class?

Average score of a class of 60 students, in an exam, was 43. Average score of the students who had passed is 52 and the average score of students who had failed is 16. How many failed the exam?

There are three positive numbers. One third of the average of all the three numbers is 8 less than the value of the highest number. The average of the lowest and the second lowest number is 8. What is the highest number?

Of the three numbers, the first is twice the second and the second is twice the third. The average of the reciprocal of the numbers is $$\frac{7}{72}$$ . The numbers are:

If the average of m numbers is n2and that of n numbers is m2 , then the average of (m + n) numbers is-

The arithmetic mean of 15 numbers is 41.4. Then the sum of these numbers is-

The average of the reciprocals of x and y is-

The mean of 5 numbers is 18. If one number is excluded, their mean is 16.Find the excluded number.

There were 35 students in a hostel. If the number of the students is increased by 7, then the expenses of the mess increased by Rs. 42 per day, while the average expenditure per head diminishes by Rs. 1. The original expenditure of the mess per day was-

The mean monthly salary paid to 75 workers in a factory is Rs. 5680. The mean salary of 25 of them is Rs. 5400 and that of 30 others is Rs. 5700. The mean salary of the remaining workers is-

A company produces on an average 4000 items per must for the first 3 months. How many items it must produce on an average per month over the next 9 months, to average 4375 items per month over the whole?

Visitor to a show were charged Rs. 15 each on the first day, Rs. 7.50 each on the second day and Rs. 2.50 each on the third day. The attendance on the three days was in the ratio 2 : 5 : 13. The average charge per person for the whole show was-

A student obtained the following marks in percentage in his semester examination English 50, Maths 65, Statistics 70, Economics 58 and Accountancy 63. The weights of these subjects are 2, 2, 1, 1 and 1 respectively. What is the weighted arithmetic mean?

The average of 10 numbers is 40.2. Later it is found that two numbers have been wrongly added. The first is 18 greater than the actual number and the second number added is 13 instead of 33. Find the correct average.

The average monthly income of a family of four earning members was Rs. 15130. One of the daughters in the family got married and left home, so the average monthly income of the family came down to Rs. 14660. What is the monthly income of the married daughter?

The average height of 25 boys is 1.4 m. When 5 boys leave the group, then the average height increased by 0.15 m. What is the average height of the 5 boys who leave ?

Of the three numbers, the first is twice the second and the second is twice the third. The average of the reciprocal of the numbers is $$\frac{7}{{72}}$$. The numbers are:

The average wages of a worker during a fortnight comprising 15 consecutive working days was Rs. 90 per day. During the first 7 days, his average wages was Rs. 87/day and the average wages during the last 7 days was Rs. 92/day. What was his wage on the 8th day?

The average age of three boys is 15 years. If their ages are in ratio 3 : 5 : 7, the age of the youngest boy is

The average price of 10 books is Rs.12 while the average price of 8 of these books is Rs. 11.75. Of the remaining two books, if the price of one book is 60% more than the price of the other, what is the price of each of these two books?

Average of ten positive numbers is x. If each number is increased by 10%, then x :

The average weight of three boys A, B and C is $$\frac{{163}}{3}$$ kg, while the average weight of three boys B, D and E is 53 kg. What is the average weight of A, B, C, D and E?

Average cost of 5 apples and 4 mangoes is Rs. 36. The average cost of 7 apples and 8 mangoes is Rs. 48. Find the total cost of 24 apples and 24 mangoes.

The difference between two angles of a triangle is 24°. The average of the same two angles is 54°. Which one of the following is the value of the greatest angle of the triangle?

When a student weighing 45 kgs left a class, the average weight of the remaining 59 students increased by 200g. What is the average weight of the remaining 59 students?