Average of 15 numbers 510. If average of 9 is 505, average of remaining 6? MCQ with Answer and Explanation

Question

Share Report Error

Average of 15 numbers 510. If average of 9 is 505, average of remaining 6?

A. 518

B. 517.5

C. 520

D. 515

Answer: Option B

Solution (By JKExamLibrary)

Sum15=7650. Sum9=4545. Remaining=3105. Average=517.5.

This question belongs to: Maths Average

Request complete Subject PDF

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Average Questions

Question #1

Average of 9 numbers 2140. If average of 6 is 2135, average of remaining 3?

A. 2148

B. 2155

C. 2150

D. 2145

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option C

Explanation:
Sum9=19260. Sum6=12810. Remaining=6450. Average=2150.

This question belongs to: Maths Average

Question #2

The average weight of 6 persons is 65 kg. If a person weighing 80 kg joins, what is the new average?

A. 68 kg

B. 66.67 kg

C. 67.5 kg

D. 67.14 kg

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option D

Explanation:
Sum=6×65=390. New sum=390+80=470. New avg=470/7=67.14.

This question belongs to: Maths Average

Question #3

Average of 8 numbers 85. If average of 5 is 80, average of remaining 3?

A. 93.33

B. 90

C. 95

D. 92

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option A

Explanation:
Sum8=680. Sum5=400. Remaining=280. Average≈93.33.

This question belongs to: Maths Average

Explore All Average MCQs