Verified past-paper data not yet uploaded
No verified paper has been uploaded for AJKPSC-PMS Mathematics Set-10 yet.
The MCQs below are drawn from the Mathematics subject category.
Showing 7441–7450
of 8364 MCQs
Page 745 / 837
7441
What is 25% of 400?
Report
Correct Option
Explanation
To find 25% of 400, convert the percentage to a fraction or decimal. 25% is equal to 25/100 or 1/4. Multiplying 1/4 by 400 gives 100.
7442
The average of 4 numbers is 25. If a fifth number 35 is added, what will be the new average?
Report
Correct Option
Explanation
Total of first 4 numbers = 4 × 25 = 100. Add 35 → new sum = 135. Average = 135 ÷ 5 = 27.
7443
The average of numbers from 1 to 99 is:
Report
Correct Option
Explanation
Average of consecutive numbers = (first + last) ÷ 2. For 1 to 99: (1 + 99) ÷ 2 = 50.
7444
The average age of 5 students is 12 years. If a teacher aged 32 joins them, what is the new average age?
Report
Correct Option
Explanation
Total age of students = 5 × 12 = 60. Adding teacher = 60 + 32 = 92. New average = 92 ÷ 6 = 15.33.
7445
The average of 9 numbers is 50. If one number 70 is replaced by 40, what will be the new average?
Report
Correct Option
Explanation
Total of 9 numbers = 9 × 50 = 450. Replacing 70 with 40 reduces sum by 30 → new sum = 420. New average = 420 ÷ 9 = 46.67.
7446
The average of 5 consecutive numbers is 18. What is the smallest number?
Report
Correct Option
Explanation
In consecutive numbers, the average equals the middle number. So the numbers are 16, 17, 18, 19, 20. Smallest number = 16.
7447
The average of 7 numbers is 14. If one number is 28, what is the average of the remaining six numbers?
Report
Correct Option
Explanation
Total of 7 numbers = 7 × 14 = 98. Removing 28 leaves 70. Average of remaining six numbers = 70 ÷ 6 = 11.67.
7448
The average of the first 20 natural numbers is:
Report
Correct Option
Explanation
Average of consecutive numbers = (first + last) ÷ 2. For numbers 1 to 20: (1 + 20) ÷ 2 = 10.5.
7449
The average of three numbers is 30. If one number is 20 and another is 40, what is the third number?
Report
Correct Option
Explanation
Total of three numbers = 3 × 30 = 90. Known numbers sum = 20 + 40 = 60. Third number = 90 − 60 = 30.
7450
The average of 10 numbers is 15. If each number is increased by 5, what will be the new average?
Report
Correct Option
Explanation
When the same value is added to each number, the average increases by that value. New average = 15 + 5 = 20.
