Average of 15 numbers 910. If average of 9 is 905, average of remaining 6? MCQ with Answer and Explanation

Question

Share Report Error

Average of 15 numbers 910. If average of 9 is 905, average of remaining 6?

A. 918

B. 920

C. 915

D. 917.5

Answer: Option D

Solution (By JKExamLibrary)

Sum15=13650. Sum9=8145. Remaining=5505. Average=917.5.

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 height of 30 boys 160 cm. If 5 more with average 170 cm, new average?

A. 161.43

B. 163

C. 162

D. 160

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option A

Explanation:
Total old=4800. New=850. Total 5650 /35≈161.43.

This question belongs to: Maths Average

Question #2

Average of 10 numbers 2180. If average of 6 is 2175, average of remaining 4?

A. 2187.5

B. 2190

C. 2186

D. 2185

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option A

Explanation:
Sum10=21800. Sum6=13050. Remaining=8750. Average=2187.5.

This question belongs to: Maths Average

Question #3

Find the average of the first 5 composite numbers.

A. 7.6

B. 8

C. 6.8

D. 7.4

View Answer & Solution Discuss

Get Complete Subject PDF for Maths

Correct Answer: Option D

Explanation:
First 5 composites: 4,6,8,9,10 sum=37, avg=37/5=7.4.

This question belongs to: Maths Average

Explore All Average MCQs