Average of 10 numbers 1580. If average of 6 is 1575, average of remaining 4? MCQ with Answer and Explanation

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Average of 10 numbers 1580. If average of 6 is 1575, average of remaining 4?

A. 1585

B. 1586

C. 1587.5

D. 1590

Answer: Option C

Solution (By JKSSB Mock Tests)

Sum10=15800. Sum6=9450. Remaining=6350. Average=1587.5.

This question belongs to: Maths Average

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Practice More Average Questions

Question #1

The average of 1350,1800,2250 is

A. 1800

B. 1790

C. 1810

D. 1795

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Correct Answer: Option A

Explanation:
5400/3=1800.

This question belongs to: Maths Average

Question #2

Average of 10 numbers is 40. If each number is multiplied by 2, what is the new average?

A. 40

B. 80

C. 20

D. 60

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Correct Answer: Option B

Explanation:
If each number is multiplied by a constant, average is also multiplied by the same. New average = 40 × 2 = 80.

This question belongs to: Maths Average

Question #3

Average of 9 numbers 2740. If average of 6 is 2735, average of remaining 3?

A. 2755

B. 2745

C. 2748

D. 2750

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Correct Answer: Option D

Explanation:
Sum9=24660. Sum6=16410. Remaining=8250. Average=2750.

This question belongs to: Maths Average

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