MCQOPTIONS
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MCQOPTIONS
This section includes 24 Mcqs, each offering curated multiple-choice questions to sharpen your Maths knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Average weight of 10 men increases by 3.5 kg when a man of 50 kg is replaced by a new man what is the age of new person? |
| A. | 85 kg |
| B. | 84 kg |
| C. | 82 kg |
| D. | 80 kg |
| Answer» B. 84 kg | |
| 2. |
Average age of 21 men reduces by 1 year when a man of 32 years is replaced by a child. What is the age of that child? |
| A. | 10 years |
| B. | 11 years |
| C. | 9 years |
| D. | 8 years |
| Answer» C. 9 years | |
| 3. |
There are 40 boys in a class and average age of the class is 16 years. A boy of 17 years of age is replaced by another one, as a result average age becomes 15.875 years. Find the age of the new boy? |
| A. | 12 years |
| B. | 14.5 years |
| C. | 15 years |
| D. | 17 years |
| Answer» B. 14.5 years | |
| 4. |
The average of 5 consecutive odd numbers A, B, C, D and E is 45. What is the product of B and D? |
| A. | 2107 |
| B. | 2205 |
| C. | 1935 |
| D. | 2021 |
| Answer» E. | |
| 5. |
The average of nine numbers is 30. The average of first five numbers is 25 and that of for last three numbers is 35, then what will be sixth number? |
| A. | 20 |
| B. | 30 |
| C. | 40 |
| D. | 50 |
| Answer» D. 50 | |
| 6. |
The average of marks obtained by 120 candidates in an examination is 35. The average of marks obtained by passed candidates is 39 and that of for failed candidates is 15. What is the no. of passed candidates? |
| A. | 100 |
| B. | 120 |
| C. | 150 |
| D. | 140 |
| Answer» B. 120 | |
| 7. |
The average daily income of A, B and C is Rs.450. If the average daily income of A and B is Rs.400. B and C is Rs.430; then the daily income of B will be- |
| A. | Rs.300 |
| B. | Rs.310 |
| C. | Rs.415 |
| D. | Rs.425 |
| Answer» C. Rs.415 | |
| 8. |
The average of first three numbers is three times of the fourth number. If the average of all four numbers is 5, then find the fourth number. |
| A. | 4.5 |
| B. | 5 |
| C. | 2 |
| D. | 4 |
| Answer» E. | |
| 9. |
The average of three numbers is 40. First of them is two times of the seconds and the second is three time of the third. So, what is the difference between the largest and smallest number? |
| A. | 30 |
| B. | 36 |
| C. | 46 |
| D. | 60 |
| Answer» E. | |
| 10. |
The average of three numbers is 154. The first number is double of the second number and the second is double of the third one. The first number is |
| A. | 264 |
| B. | 132 |
| C. | 88 |
| D. | 66 |
| Answer» B. 132 | |
| 11. |
The average of marks obtained by 14 students was 71, but it was found later that one of the student s mark was accounted as 42 instead of 56 and for the other student; it was accounted as 74 instead of 32. So, the find the actual average? |
| A. | 67 |
| B. | 68 |
| C. | 69 |
| D. | 71 |
| Answer» D. 71 | |
| 12. |
The average value found for 20 observations was 75. It was noticed later that 97 was read as 79. So, what was the correct average value? |
| A. | 75.7 |
| B. | 75.8 |
| C. | 75.9 |
| D. | 75.6 |
| Answer» D. 75.6 | |
| 13. |
The average salary of all employees working in an office is Rs.8000. The average salary of 7 technicians is Rs 12000 and the average salary of rest of the workers is Rs.6000. The total no. of workers working in that office is- |
| A. | 20 |
| B. | 21 |
| C. | 23 |
| D. | 22 |
| Answer» C. 23 | |
| 14. |
The average of nine consecutive odd numbers is 53. The least odd number is: |
| A. | 22 |
| B. | 27 |
| C. | 35 |
| D. | 45 |
| Answer» E. | |
| 15. |
Average of five numbers is 20. If each number is multiplied by 2, what will be the new average? |
| A. | 30 |
| B. | 40 |
| C. | 50 |
| D. | 60 |
| Answer» C. 50 | |
| 16. |
Average age of a couple before 4 years, at the time of their marriage was 27 years. Now, the average age of the couple including their new born baby is 21 years. Find the present age of the baby? |
| A. | 4 years |
| B. | 3 years |
| C. | 2 years |
| D. | 1 years |
| Answer» E. | |
| 17. |
Average weight of 24 students is 32 kg. If increase by 2 kg when a teacher joins the group. What will be the weight of teacher? |
| A. | 82 kg |
| B. | 84 kg |
| C. | 80 kg |
| D. | 85 kg |
| Answer» B. 84 kg | |
| 18. |
Average age of 12 men is 56 years. Two members of 60 years and 52 years die. What will the average age of the remaining members? |
| A. | 54 years |
| B. | 55 years |
| C. | 56 years |
| D. | 58 years |
| Answer» D. 58 years | |
| 19. |
The average of the squares of first ten natural numbers is |
| A. | 37.5 |
| B. | 38.5 |
| C. | 35.5 |
| D. | 36 |
| Answer» C. 35.5 | |
| 20. |
The average age of 30 boys in a class is 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. | 20 years |
| B. | 15 years |
| C. | 10 years |
| D. | 8 years |
| Answer» C. 10 years | |
| 21. |
Average height of 40 girls is 148 cm. Average of remaining number is 150 cm. What will be the average of total class if there are 50 girls in the class? |
| A. | 148.8 cm |
| B. | 149.2 cm |
| C. | 148.4 cm |
| D. | 144 cm |
| Answer» D. 144 cm | |
| 22. |
Average runs of a player in 20 innings is 40.5. His lowest score was 5 and highest was 103. What is the average of remaining inning? |
| A. | 36 |
| B. | 38 |
| C. | 39 |
| D. | 41 |
| Answer» D. 41 | |
| 23. |
The mean of 14 observations is 11. One more observation is included and the new mean becomes 12. The observation is |
| A. | 20 |
| B. | 24 |
| C. | 26 |
| D. | 28 |
| Answer» D. 28 | |
| 24. |
Find mean of first five prime number. |
| A. | 4.5 |
| B. | 3.6 |
| C. | 5.4 |
| D. | 5.6 |
| Answer» E. | |