Average of 15 numbers 210. If average of 9 is 205, average of remaining 6? MCQ with Answer and Explanation

Question

Share Report Error

Average of 15 numbers 210. If average of 9 is 205, average of remaining 6?

A. 218

B. 220

C. 215

D. 217.5

Answer: Option D

Solution (By JKSSB Mock Tests)

Sum15=3150. Sum9=1845. Remaining=1305. Average=217.5.

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 12 numbers 2470. If average of 8 is 2465, average of remaining 4?

A. 2475

B. 2480

C. 2478

D. 2482

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option B

Explanation:
Sum12=29640. Sum8=19720. Remaining=9920. Average=2480.

This question belongs to: Maths Average

Question #2

Average of 10 numbers 580. If average of 6 is 575, average of remaining 4?

A. 586

B. 585

C. 590

D. 587.5

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option D

Explanation:
Sum10=5800. Sum6=3450. Remaining=2350. Average=587.5.

This question belongs to: Maths Average

Question #3

What is the average of squares of first 5 natural numbers?

A. 55

B. 11

C. 10

D. 15

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option B

Explanation:
Squares: 1,4,9,16,25. Sum=55. Average=55/5=11.

This question belongs to: Maths Average

Explore All Average MCQs