Average of 8 numbers 2550. If average of 5 is 2545, average of remaining 3? MCQ with Answer and Explanation

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Average of 8 numbers 2550. If average of 5 is 2545, average of remaining 3?

A. 2557

B. 2558.33

C. 2555

D. 2560

Answer: Option B

Solution (By JKSSB Mock Tests)

Sum8=20400. Sum5=12725. Remaining=7675. Average≈2558.33.

This question belongs to: Maths Average

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Question #1

The average of 750,1000,1250 is

A. 995

B. 1000

C. 990

D. 1010

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Correct Answer: Option B

Explanation:
3000/3=1000.

This question belongs to: Maths Average

Question #2

If average of 12 numbers is 35 and average of first 8 is 32, average of last 4?

A. 42

B. 41

C. 40

D. 38

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Correct Answer: Option B

Explanation:
Sum12=420. Sum8=256. Last4=164. Average=41.

This question belongs to: Maths Average

Question #3

Average of 15 numbers 1810. If average of 9 is 1805, average of remaining 6?

A. 1815

B. 1820

C. 1818

D. 1817.5

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Correct Answer: Option D

Explanation:
Sum15=27150. Sum9=16245. Remaining=10905. Average=1817.5.

This question belongs to: Maths Average

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