Explore topic-wise MCQs in Aptitude.

This section includes 559 Mcqs, each offering curated multiple-choice questions to sharpen your Aptitude knowledge and support exam preparation. Choose a topic below to get started.

451.

The average of ten numbers is calculated as 15. It was discovered later on that while calculating the average one number namely 36 was wrongly read as 26. Find the correct average.

A. 16
B. 18
C. 19
D. 16.5
Answer» B. 18
452.

The average of 50 numbers is 38. If two numbers, namely 45 and 55 are discarded, what is the average of the remaining numbers?

A. 38.5
B. 36.5
C. 35.5
D. 37.5
Answer» E.
453.

The average age of A, B , C, D five years ago was 45 years . by including P, the present average age of all the five is 49 years . the present age of P is ?

A. 64 years
B. 48 years
C. 45 years
D. 40 years
Answer» D. 40 years
454.

Out of three number, the first is twice the second and is half of the third. If the average of the three number is 56, the three number on order are ?

A. 48, 96, 24
B. 48, 24, 96
C. 96, 24,48
D. 96, 48, 24
Answer» C. 96, 24,48
455.

The sum of seven numbers is 235. The average of the first three is 23 and that of the last three is 42. The fourth number is ?

A. 40
B. 126
C. 69
D. 195
Answer» B. 126
456.

The average weight of 19 students is 15kg. by the admission of a new student the average weight is reduced to 14.8 kg. the weight of the new student is ?

A. 10.6 kg
B. 10.8 kg
C. 11 kg
D. 14.9 kg
Answer» D. 14.9 kg
457.

The average of the daily income of A, B and C is Rs . 60 . If B earns Rs . 20 more than C and A earns double of what C earns. What is the daily income of C ?

A. Rs. 70
B. Rs. 60
C. Rs. 40
D. None of these
Answer» D. None of these
458.

The average age of an adult class is 40 years. 12 new students with an average age of 32 years join the class. Therefore decreasing the average by 4 year. what was the original strength of class ?

A. 10
B. 11
C. 12
D. 15
Answer» D. 15
459.

The average weight of 8 persons is increased by 2.5 kg, when one of them whose weight is 56 kg is replaced by a new man. The weight of the man is ?

A. 66 kg
B. 75 kg
C. 76 kg
D. 86 kg
Answer» D. 86 kg
460.

In a class, there are 20 boys whose average age is decreased by 2 months, when one boy aged 18 years is replaced by a new boy. The age of the new boy is ?

A. 14 years 8 months
B. 15 years
C. 16 years 4 months years
D. 17 years 10 months years
Answer» B. 15 years
461.

Out of four number, the average of first three is 15 and that of the last three is 16, if the last number is 19, the first is ?

A. 15
B. 16
C. 18
D. 19
Answer» C. 18
462.

The average temperature of the first three days is 27 C and that of the next three is 29 C . If the average of the whole week is 28.5 C, the temperature of the last day of the week is ?

A. 10.5 C
B. 21 C
C. 31.5 C
D. 42 C
Answer» D. 42 C
463.

A ship sails out to a mark at the rate of 15 kmph. and sails back at the rate of 10 kmph. The average rate of sailing is ?

A. 5 km/hr
B. 12 km/hr
C. 12.5 km/hr
D. 25 km/hr
Answer» C. 12.5 km/hr
464.

The average consumption of petrol for a car for seven months is 110 litres and for next five months it is 86 litres. The average monthly consumption is ?

A. 96 litres
B. 98 litres
C. 100 litres
D. 102 litres
Answer» D. 102 litres
465.

The average of 50 number is 38 .if two numbers 45 and 55 are discarded , the average of the remaining number is ?

A. 36.5
B. 37.0
C. 37.5
D. 37.52
Answer» D. 37.52
466.

A batsman has a certain average runs for 11 innings . In the 12th innings he made a score of 90 runs and thereby decrease his average by 5 . His average after 12th innings is ?

A. 127
B. 145
C. 150
D. 217
Answer» C. 150
467.

The average score of a cricketer for 10 matches is 43.9 runs. If the average for the first six matches is 53 , the average for the last four matches is ?

A. 17.15
B. 29.75
C. 30.25
D. 31
Answer» D. 31
468.

Average monthly income of a family of 4 earning members was Rs. 735. One of the earning members died and therefore, the average income came down to Rs 650. The income of the deceased was?

A. Rs. 692.80
B. Rs. 820
C. Rs. 990
D. Rs. 1385
Answer» D. Rs. 1385
469.

The average height of 30 girls out of a class of 40 is 160 cms and that of the remaining girls is 156 cms. the average height of the whole class is ?

A. 11.8
B. 25
C. 29.5
D. 30
Answer» E.
470.

If a, b, c, d, e are five consecutive odd number , their average is ?

A. 5 (a + 4)
B. abcd/5
C. 5 (a + b + c + d + e)
D. None of these
Answer» E.
471.

The average of first nine multiples of 3 is ?

A. 12.0
B. 12.5
C. 15.0
D. 18.5
Answer» D. 18.5
472.

The average of five results is 46 and that of the first four is 45. the fifth result is ?

A. 51
B. 50
C. 49.5
D. 49
Answer» E.
473.

The average of numbers 0.64204, 0.64203, 0.64202 and 0.64201 is ?

A. 0.64202
B. 0.64204
C. 0.642022
D. 0.642025
Answer» E.
474.

The average of 30 results is 20 and the average of other 20 results is 30 . what is the average of all the results?

A. 24
B. 25
C. 48
D. 50
Answer» B. 25
475.

The average weight of A, B, C is 45kg. if the average weight of A and B be 40 kg and that of B and C be 40kg and that of B and C be 43kg, then the weight of B is ?

A. 17kg
B. 20kg
C. 26kg
D. 31kg
Answer» E.
476.

The average age of A,B,C,D and E is 40 years.The average age of A and B is 35 years and the average age of C and D is 42 years .The age of E is

A. 46
B. 48
C. 32
D. none of these
Answer» B. 48
477.

Find the average of 308, 142, 160, 245 and 25.

A. 176
B. 178
C. 175
D. 174
Answer» B. 178
478.

The average age of a group of 10 friends is 15 yr. If one friend leaves the group, the average becomes 16 yr. Find the age of the friend who left the group.

A. 5 yr
B. 4 yr
C. 6 yr
D. None of these
Answer» D. None of these
479.

What is the average of first 79 natural numbers?

A. 79
B. 39
C. 40
D. 39.5
Answer» D. 39.5
480.

The average of 8 number 21. if each of the number is multiplied by 8,the new set of number is ?

A. 8
B. 21
C. 29
D. 168
Answer» E.
481.

The average salary of A, B is Rs. 6000 and that of C, D and E is Rs. 8000. The average salary of all the 5 people is

A. Rs.7200
B. Rs. 7000
C. Rs. 7500
D. can't be determined
Answer» B. Rs. 7000
482.

The average salary of Rajesh, Bahadur and Amir is Rs. 8000 per month. The average expenditure of Rajesh , Bahadur and Amir per month is Rs. 5000. The average savings of all the 3 persons per month is

A. Rs. 3000
B. Rs. 5000
C. Rs. 2500
D. Rs. 9000
Answer» B. Rs. 5000
483.

The average salary of A, B and C is Rs.10,000 and average expenditure of A is Rs. 6000 then the average savings of B and C is

A. Rs. 5500
B. Rs. 4500
C. Rs. 4000
D. can't be determined
Answer» E.
484.

The Average of 100, 200, 300, 400, ... , 1000 is 550. If each number is divided by 5, then the new average will be equal to

A. 450
B. 45
C. 55
D. None of these
Answer» E.
485.

A, B, C, D, E are the five electronic shops in the Naza market, which have 20, 30, 60, 80 and 50 T. V . sets with them respectively, then the average number of T. V. sets in each shop is

A. 24
B. 48
C. 50
D. 60
Answer» C. 50
486.

A, B, C, D, E, F are the only six families in Indira Nagar. A, B, C, D, E and F has 7, 8, 10, 13, 6, and 10 member in their families respectively. If 1 member from all the six families left their respective families to accommodate themselves in the hostel of IIM Lucknow, then the average number of member now in each family of Indira nagar is

A. 8
B. 9
C. 10
D. 13
Answer» B. 9
487.

The average salary of all the 60 employees in an office is Rs. 12,000 per month. if the number of executives is twice the number of non executives employees, then the average salary of all the non executives employees is

A. Rs. 9000
B. Rs. 8000
C. Rs. 6000
D. can't be determined
Answer» E.
488.

In a flower shop there were 6 flowers in each bouquet. If the seller has doubled the number of flowers in each bouquet then the new average of flowers in each bouque is

A. 12
B. 3
C. 8
D. none of these
Answer» B. 3
489.

The average number of shirts with Salman, Ambani and Dalmiya is 60, if all of them reached a shopping mall in Delhi and purchased 6 shirts each of them then average number of shirt each of them now has

A. 66
B. 63
C. 62
D. can't be determined
Answer» B. 63
490.

Einstein goes from Ahmedabad To Lucknow at the speed of 40 km/hr and returned at the speed of 60 km/hr .the average speed of Einstein during the whole journey is

A. 48 km/hr
B. 24 km/hr
C. 50 km/hr
D. none of these
Answer» B. 24 km/hr
491.

The average age of 24 students in a class is 10. If the teacher s age is included, the average increase by one . The age of the teacher is ?

A. 25 year
B. 30 year
C. 35 year
D. 40 year
Answer» D. 40 year
492.

The average expenditure of a man for the first five month is Rs. 120 and for the next seven months it is Rs . 130. if he saves Rs 299 in that year, his monthly average income is ?

A. Rs. 140
B. Rs. 150
C. Rs. 160
D. Rs. 170
Answer» C. Rs. 160
493.

The average salary of 20 workers in an office id Rs. 1900 per month . If the manger s salary is added , the average salary become Rs. 2000 p.m what is the manager s annual salary ?

A. Rs. 24000
B. Rs. 25200
C. Rs. 45600
D. None of these
Answer» E.
494.

The average of 6 observation is 12. A new 7th observation is included and the new average is decrease by 1 , the seventh observation is ?

A. 1
B. 3
C. 5
D. 6
Answer» D. 6
495.

Find the average of the following set of scores 253, 124, 255, 534, 836, 375, 101, 443, 760

A. 427
B. 413
C. 141
D. 490
E. None of the above
Answer» F.
496.

Find the average of the following set of scores. 124, 856, 331, 227, 963, 338, 259, and 662

A. 570
B. 660
C. 141
D. 350
E. None of the above
Answer» F.
497.

The salary of A, B, C, D, E is Rs. 8000, Rs. 5000, Rs. 11000, Rs. 7000, Rs. 9000 per month respectively, then the average salary of A, B, C, D, and E per month is

A. Rs. 7000
B. Rs. 8000
C. Rs. 8500
D. Rs. 9000
Answer» C. Rs. 8500
498.

The average of 6 number 13, 17, 25, 11, 26, 10 is

A. 20
B. 17
C. 15
D. 25
Answer» C. 15
499.

A shop of electronic goods is closed on Monday. The average sales per day for remaining six days of a week is 15640 and the average sale on Tuesday to Saturday is 14124. The sales on Sunday is

A. 21704
B. Data inadequate
C. 23220
D. 20188
Answer» D. 20188
500.

In an examination average marks obtained by the girls of a class is 85 and the average marks obtained by the boys of the same class is 87. If the girls and boys are in the ratio 4 : 5, average marks of the whole class (approximately) is closest to

A. 85.9
B. 86.1
C. 86.4
D. 86.5
Answer» C. 86.4