Average of 15 numbers 2560. If average of 9 is 2555, average of remaining 6? MCQ with Answer and Explanation

Question

Share Report Error

Average of 15 numbers 2560. If average of 9 is 2555, average of remaining 6?

A. 2565

B. 2570

C. 2568

D. 2567.5

Answer: Option D

Solution (By JKSSB Mock Tests)

Sum15=38400. Sum9=22995. Remaining=15405. Average=2567.5.

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

Share Report

Average of 25 numbers 40. If average of first 13 is 38, average of last 13 is 42, what is the 13th number?

A. 42

B. 40

C. 39

D. 38

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option B

Explanation:
Sum25=1000. Sum1-13=494. Sum13-25=546. 13th=494+546-1000=40.

This question belongs to: Maths Average

Question #2

Share Report

Average of 8 numbers 2350. If average of 5 is 2345, average of remaining 3?

A. 2360

B. 2358.33

C. 2355

D. 2357

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option B

Explanation:
Sum8=18800. Sum5=11725. Remaining=7075. Average≈2358.33.

This question belongs to: Maths Average

Question #3

Share Report

The average of 6 numbers is 20. If one number is 10, find the average of the rest.

A. 20.5

B. 22

C. 21

D. 21.5

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option B

Explanation:
Sum=6×20=120. Rest sum=120-10=110. Avg=110/5=22.

This question belongs to: Maths Average

Explore All Average MCQs