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MCQOPTIONS
This section includes 759 Mcqs, each offering curated multiple-choice questions to sharpen your General Aptitude knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
In a family of 5 members, the average age at present is 33 years. The youngest member is 9 years old. The average age of the family just before the birth of the youngest members was : |
| A. | 0 years |
| B. | 9 years |
| C. | 5 years |
| D. | 4 years |
| Answer» B. 9 years | |
| 102. |
Find the average of cubes of first 49 positive integers. |
| A. | 0625 |
| B. | 225 |
| C. | 0125 |
| D. | 235 |
| Answer» B. 225 | |
| 103. |
If the average marks of three batches of 55, 60 and 45 students respectively is 50, 55 and 60, then the average marks of all the students is : |
| A. | 4.68 |
| B. | 3.33 |
| C. | 5 |
| D. | one of these |
| Answer» B. 3.33 | |
| 104. |
In the afternoon, a student read 100 pages at the rate of 60 pages per hour. In the evening, when she was tired, she read 100 more pages at the rate of 40 pages per hour. What was her average rate of reading the pages per hours ? |
| A. | 0 |
| B. | 0 |
| C. | 8 |
| D. | 0 |
| Answer» D. 0 | |
| 105. |
The average weight of first 11 persons among 12 persons is 95 kg. The weight of 12th person is 33 kg more than the average weight of all the 12 persons. The weight of the 12th person is : |
| A. | 28.75 |
| B. | 31 |
| C. | 28 |
| D. | 7.45 |
| Answer» C. 28 | |
| 106. |
The average age of a class of 39 students is 15 years. If the age of the teacher is included, then the average increases by 3 months. Find the age of the teacher. |
| A. | 0 years |
| B. | 5 years |
| C. | 5 years |
| D. | 0 years |
| Answer» C. 5 years | |
| 107. |
The average of 8 numbers is 20. The average of first two numbers is $$15\frac{1}{2}$$ and that of the next three is $$21\frac{1}{3}$$ . If the sixth number be less than the seventh and eighth numbers by 4 and 7 respectively, them the eighth number is : |
| A. | 8 |
| B. | 2 |
| C. | 5 |
| D. | 7 |
| Answer» D. 7 | |
| 108. |
The average age of 30 boys in a class in 15 years. One boy, aged 20 years, left the class, but two new boys came in his place whose age differs by 5 years. If the average age of all the boys now in the class becomes 15 years, the age of the younger newcomer is : |
| A. | 0 years |
| B. | 5 years |
| C. | 0 years |
| D. | years |
| Answer» C. 0 years | |
| 109. |
Average of n numbers is a. The first number is increased by 2, second one is increased by 4, the third one is increased by 8 and so on. The average of the new numbers is - |
| A. | $a + \frac{{2\left( {{2^n} - 1} \right)}}{n}$$ |
| B. | $a + \frac{{{2^{n + 1}} - 1}}{n}$$ |
| C. | $a + \frac{{{2^{n + 1}}}}{n}$$ |
| D. | $a + 2\frac{{{2^{n - 1}}}}{n}$$ |
| Answer» B. $a + \frac{{{2^{n + 1}} - 1}}{n}$$ | |
| 110. |
The mean of 50 numbers is 30. Later it was discovered that two entries were wrongly entered as 82 and 13 instead of 28 and 31. Find the correct mean. |
| A. | 6.12 |
| B. | 0.66 |
| C. | 9.28 |
| D. | 8.21 |
| Answer» D. 8.21 | |
| 111. |
The average age of 11 players of a cricket team decreases by 2 months when two new players are included in the team replacing two players of age 17 years and 20 years. The average age of new players is : |
| A. | 7 years 1 month |
| B. | 7 years 7 month |
| C. | 7 years 11 month |
| D. | 8 years 3 month |
| Answer» C. 7 years 11 month | |
| 112. |
The average of the first 100 positive integers is - |
| A. | 00 |
| B. | 1 |
| C. | 0.5 |
| D. | 9.5 |
| Answer» D. 9.5 | |
| 113. |
Out of 10 teachers of a school, one teacher retires and in place of him a new teacher 25 years old joins. As a result of it average age of the teachers reduces by 3 years. Age of the retired teacher (in years) is - |
| A. | 5 |
| B. | 5 |
| C. | 5 |
| D. | 5 |
| Answer» B. 5 | |
| 114. |
A batsman in his 12th innings makes a score of 63 runs and there by increases his average score by 2. What is his average after the 12th innings ? |
| A. | 3 |
| B. | 9 |
| C. | 1 |
| D. | 7 |
| Answer» D. 7 | |
| 115. |
The average weight of a group of 20 boys was calculated to be 89.4 kg and it was later discovered that one weight was misread as 78 kg instead of 87 kg. The correct average weight is - |
| A. | 8.95kg |
| B. | 9.25 kg |
| C. | 9.55 kg |
| D. | 9.85 kg |
| Answer» E. | |
| 116. |
The mean of 20 items is 55. If two items 45 and 30 are removed, the new mean of the remaining items is : |
| A. | 5.1 |
| B. | 5.3 |
| C. | 6.9 |
| D. | 6 |
| Answer» D. 6 | |
| 117. |
There are 50 students in a class. Their average weight is 45 kg. When one student leaves the class the average weight reduces by 100 g. What is the weight of the student who left the class ? |
| A. | 5 kg. |
| B. | 7.9 kg. |
| C. | 9.9 kg. |
| D. | 0.1 kg. |
| Answer» D. 0.1 kg. | |
| 118. |
The average ofx1, x2, x3 and x4 is 16. Half the sum of x2, x3, x4 is 23. What is the value of x1? |
| A. | 7 |
| B. | 8 |
| C. | 9 |
| D. | 0 |
| Answer» C. 9 | |
| 119. |
If the mean of a, b, c, is M and ab + bc + ca = 0, then the mean of a2, b2, c2is - |
| A. | 2 |
| B. | M2 |
| C. | M2 |
| D. | M2 |
| Answer» C. M2 | |
| 120. |
The total marks obtained by a student in Physics, Chemistry and Mathematics together is 120 more than the marks obtained by him in Chemistry. What is the average marks obtained by him in Physics and Mathematics together? |
| A. | 0 |
| B. | 0 |
| C. | 20 |
| D. | annot be determined |
| E. | one of these |
| Answer» C. 20 | |
| 121. |
Average age of 6 sons of a family is 8 years. Average age of sons together with their parents is 22 years. If the father is older than the mother by 8 years, the age of mother (in years) is - |
| A. | 4 |
| B. | 2 |
| C. | 0 |
| D. | 8 |
| Answer» D. 8 | |
| 122. |
The average of 12 numbers is 15 and the average of the first two is 14. What is the average of the rest ? |
| A. | $15\frac{1}{5}$$ |
| B. | 4 |
| C. | $11\frac{1}{5}$$ |
| D. | 5 |
| Answer» B. 4 | |
| 123. |
The average of 25 observations is 13. It was later found that an observation 73 was wrongly entered as 48. The new average is - |
| A. | 2.6 |
| B. | 4 |
| C. | 5 |
| D. | 3.8 |
| Answer» C. 5 | |
| 124. |
The average monthly income of A and B is Rs. 14000, that of B and C is Rs. 15600 and A and C is Rs. 14400. The monthly income of C is : |
| A. | s. 16000 |
| B. | s. 15000 |
| C. | s. 14000 |
| D. | s. 15500 |
| Answer» B. s. 15000 | |
| 125. |
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 is that 60 kg but less than 70 kg. His mother’s view is that his weight cannot be greater than 68 kg. If all of 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 |
| E. | one of these |
| Answer» B. 8 kg | |
| 126. |
The following table shows the number of working hours and the number of employees employed in a small scale industryNo. of working hoursNo. of employees3 - 575 - 7107 - 9189 - 115711 - 131413 - 158The average number of working hours of an employee is |
| A. | 0.5 |
| B. | 0.5 |
| C. | 0.5 |
| D. | one of these |
| Answer» C. 0.5 | |
| 127. |
A library has an average of 510 visitors on Sundays and 240 on other days. The average number of visitors per day in a month of 30 days beginning with a Sunday is- |
| A. | 50 |
| B. | 76 |
| C. | 80 |
| D. | 85 |
| Answer» E. | |
| 128. |
The average expenditure of a man for the first five months of a year is Rs. 5000 and for the next seven months it is Rs. 5400. He saves Rs. 2300 during the year. His average monthly income is- |
| A. | s. 5425 |
| B. | s. 5446 |
| C. | s. 5500 |
| D. | s. 5600 |
| Answer» B. s. 5446 | |
| 129. |
In a certain factory there are five workers A, B, C, D and E. A can complete a work in 4 minutes, B in 5 minutes, C in 6 minutes, D in 10 minutes and E in 12 minutes. Theaverage number of unitsof work completed per worker per minute will be- |
| A. | 0.16 |
| B. | 0.172 |
| C. | 0.8 |
| D. | 0.87 |
| Answer» B. 0.172 | |
| 130. |
The average of five consecutive numbers is x. If the next two numbers are included, how shall the average vary? |
| A. | t shall increase by 1 |
| B. | t shall remain the same |
| C. | t shall increase by 1.4 |
| D. | t shall increase by 2 |
| Answer» B. t shall remain the same | |
| 131. |
The arithmetic mean of the series 1, 2, 4, 8, 16, . . . . . . , 2nis - |
| A. | $\frac{{{2^n} - 1}}{{n + 1}}$$ |
| B. | $\frac{{{2^n} + 1}}{{n}}$$ |
| C. | $\frac{{{2^n} - 1}}{{n}}$$ |
| D. | $\frac{{{2^{n + 1}} - 1}}{{n + 1}}$$ |
| Answer» E. | |
| 132. |
A, B, C and D are four consecutive even numbers respectively and their average is 65. What is the product of A and D? |
| A. | 968 |
| B. | 092 |
| C. | 216 |
| D. | 352 |
| E. | one of these |
| Answer» D. 352 | |
| 133. |
The average of two numbers is 6.5 and square root of their product is 6. What are the numbers? |
| A. | 1 and 2 |
| B. | and 5 |
| C. | and 4 |
| D. | 0 and 3 |
| Answer» D. 0 and 3 | |
| 134. |
The average of five consecutive odd numbers is 95. What is the fourth number in the descending order? |
| A. | 1 |
| B. | 5 |
| C. | 7 |
| D. | 9 |
| E. | one of these |
| Answer» F. | |
| 135. |
The sum of the three consecutive even numbers is 44 more than the average of these numbers. Which of the following is the third largest of these numbers? |
| A. | 6 |
| B. | 8 |
| C. | 4 |
| D. | annot be determined |
| E. | one of these |
| Answer» D. annot be determined | |
| 136. |
A car owner buys petrol at Rs. 17, Rs. 19 and Rs. 20 per litre for three consecutive years. Compute the average cost per litre, if he spends Rs 6460 per year. |
| A. | s. 18.49 |
| B. | s. 18.58 |
| C. | s. 19.20 |
| D. | s. 21.66 |
| Answer» C. s. 19.20 | |
| 137. |
The average age of 30 students in a class is 15 years. If 6 students of this class have the average age of 16 years, then the average age of the remaining 24 students would be- |
| A. | 4 yrs |
| B. | 4 yrs 3 mths |
| C. | 4 yrs 6 mths |
| D. | 4 yrs 9 mths |
| Answer» E. | |
| 138. |
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 | |
| 139. |
In a one-day cricket match the captain of one of the teams scored 30 runs more than the average runs scored by the remaining six batsman of that team who batted in the match. If the total runs scored by all the batsmen of that team were 310, how many runs did the captain score? |
| A. | 0 |
| B. | 0 |
| C. | 0 |
| D. | annot be determined |
| E. | one of these |
| Answer» D. annot be determined | |
| 140. |
The average of 8 numbers is 20. The average of first two numbers is $$15\frac{1}{2}$$ and that of the next three is $$21\frac{1}{3}$$. If the sixth number be less than the seventh and eighth numbers by 4 and 7 respectively, then the eight number is- |
| A. | 8 |
| B. | 2 |
| C. | 5 |
| D. | 7 |
| Answer» D. 7 | |
| 141. |
While calculating the average of a batsman as 36 in 100 matches that he played, one of the scores 90 was incorrectly noted as 40. The percentage error is- |
| A. | .5% |
| B. | .21% |
| C. | .34% |
| D. | .36% |
| Answer» E. | |
| 142. |
The average weight of three boys A, B and C is $$54\frac{1}{3}$$ kg, while the average weight of B, D and E is 53 kg. What is the average weight of A, B, C, D and E? |
| A. | 2.4 kg |
| B. | 3.2 kg |
| C. | 3.8 kg |
| D. | ata inadequate |
| E. | one of these |
| Answer» E. one of these | |
| 143. |
The mean temperature of Monday to Wednesday was 37°C and of and of Tuesday to Thursday was 34°C. If the temperature on Thursday was $$\frac{4}{5}$$ that of Monday, the temperature of Thursday was- |
| A. | 4°C |
| B. | 5.5°C |
| C. | 6°C |
| D. | 6.5°C |
| Answer» D. 6.5°C | |
| 144. |
In a group of 120 people, one-fifth are men, one-fourth are women and the rest children. The average age of women is five-sixth of the average age of men. Average age of children is one-fourth of the average age of men. If average age of men is 60 years, what is the average age of the group? |
| A. | 2.75 yeras |
| B. | 8.45 years |
| C. | 5.25 years |
| D. | 0.5 years |
| Answer» B. 8.45 years | |
| 145. |
The average of odd numbers up to 100 is |
| A. | 9 |
| B. | 0.5 |
| C. | 0 |
| D. | 00 |
| Answer» D. 00 | |
| 146. |
Of four numbers whose average is 60, the first is one-fourth of the sum of the last three. The first number is - |
| A. | 5 |
| B. | 2 |
| C. | 5 |
| D. | 8 |
| Answer» E. | |
| 147. |
The average of 7 consecutive numbers is 20. The largest of these numbers is- |
| A. | 0 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» D. 4 | |
| 148. |
The average mark of student in 4 subjects is 75. If the student obtained 80 marks in the fifth subject, then the new average is- |
| A. | 2.5 |
| B. | 6 |
| C. | 7 |
| D. | 7.5 |
| Answer» C. 7 | |
| 149. |
The average annual income (in Rs.) of certain agricultural workers is S and that of other workers is T. The number of agricultural workers is 11 times that of other workers. Then the average monthly income (in Rs.) of all the workers is- |
| A. | $\frac{S + T}{2}$$ |
| B. | $\frac{S + 11T}{2}$$ |
| C. | $\frac{1}{{11S}} + 1$$ |
| D. | $\frac{11S + T}{12}$$ |
| Answer» E. | |
| 150. |
In a class there are 32 boys and 28 girls. The average age of the boys in the class is 14 years and the average age of the girls in the class 13 years. What is the average age of the whole class (rounded to two digits after decimal) ? |
| A. | 2.51 |
| B. | 3.42 |
| C. | 3.5 |
| D. | 3.53 |
| E. | one of these |
| Answer» E. one of these | |