Average of 10 numbers 680. If average of 6 is 675, average of remaining 4? MCQ with Answer and Explanation

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Average of 10 numbers 680. If average of 6 is 675, average of remaining 4?

A. 685

B. 687.5

C. 690

D. 686

Answer: Option B

Solution (By JKExamLibrary)

Sum10=6800. Sum6=4050. Remaining=2750. Average=687.5.

This question belongs to: Maths Average

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Practice More Average Questions

Question #1

Average of 18,36,54,72 is

A. 45

B. 40

C. 42

D. 50

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Correct Answer: Option A

Explanation:
180/4=45.

This question belongs to: Maths Average

Question #2

Find the average of the first 6 multiples of 3.

A. 10.5

B. 9.5

C. 11

D. 10

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Correct Answer: Option A

Explanation:
Multiples:3,6,9,12,15,18 sum=63, count=6, avg=10.5.

This question belongs to: Maths Average

Question #3

Average of 9 numbers 175. If average of 6 is 170, average of remaining 3?

A. 188

B. 180

C. 185

D. 182

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Correct Answer: Option C

Explanation:
Sum9=1575. Sum6=1020. Remaining=555. Average=185.

This question belongs to: Maths Average

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