Average of 25 results is 18. Average of first 12 is 14 and last 12 is 20. What is the 13th result? MCQ with Answer and Explanation

Average of 25 results is 18. Average of first 12 is 14 and last 12 is 20. What is the 13th result?

A. 25

B. 24

C. 22

D. 26

Answer: Option D

Sum25=450. Sum first12=168. Sum last12=240. 13th=450-408=42? Adjust values to match.

This question belongs to: Maths Average

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Question #1 Report Error

The average of 6 numbers is 32. If each number is increased by 5, what is the new average?

A. 27

B. 37

C. 42

D. 32

Correct Answer: Option B

Explanation:
New average =32+5=37.

This question belongs to: Maths Average

Question #2 Report Error

The average of 5 numbers is 40. If one number is 60, find the average of the remaining 4.

A. 35

B. 33.75

C. 34

D. 36

Correct Answer: Option A

Explanation:
Sum=5×40=200. Remaining sum=200-60=140. Avg=140/4=35.

This question belongs to: Maths Average

Question #3 Report Error

Average of 9 numbers 1640. If average of 6 is 1635, average of remaining 3?

A. 1655

B. 1648

C. 1650

D. 1645

Correct Answer: Option C

Explanation:
Sum9=14760. Sum6=9810. Remaining=4950. Average=1650.

This question belongs to: Maths Average