Average of 15 numbers 410. If average of 9 is 405, average of remaining 6? MCQ with Answer and Explanation

Question

Share Report Error

Average of 15 numbers 410. If average of 9 is 405, average of remaining 6?

A. 418

B. 415

C. 420

D. 417.5

Answer: Option D

Solution (By JKSSB Mock Tests)

Sum15=6150. Sum9=3645. Remaining=2505. Average=417.5.

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 20 numbers is 45. Later two numbers 30 and 50 replaced by 40 and 60, new average?

A. 44

B. 46

C. 45

D. 47

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option B

Explanation:
Net change +20. Increase 1. New average=46.

This question belongs to: Maths Average

Question #2

Average of 16 numbers 45. If average of 10 is 40, average of remaining 6?

A. 50

B. 55

C. 53.33

D. 52

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option C

Explanation:
Sum16=720. Sum10=400. Remaining=320. Average≈53.33.

This question belongs to: Maths Average

Question #3

If the average of 12 numbers is 30 and average of 8 is 35, average of remaining 4 is

A. 25

B. 20

C. 22.5

D. 18

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option B

Explanation:
Sum12=360. Sum8=280. Remaining sum=80. Average=20.

This question belongs to: Maths Average

Explore All Average MCQs