Average of 10 numbers 2480. If average of 6 is 2475, average of remaining 4? MCQ with Answer and Explanation

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Average of 10 numbers 2480. If average of 6 is 2475, average of remaining 4?

A. 2485

B. 2486

C. 2487.5

D. 2490

Answer: Option C

Solution (By JKSSB Mock Tests)

Sum10=24800. Sum6=14850. Remaining=9950. Average=2487.5.

This question belongs to: Maths Average

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Question #1

Average of 18 numbers 50. If 6 numbers average 55, average of remaining 12?

A. 46

B. 45

C. 47.5

D. 48

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Correct Answer: Option C

Explanation:
Sum18=900. Sum6=330. Remaining=570/12=47.5.

This question belongs to: Maths Average

Question #2

Average of 10 numbers 2630. If average of 6 is 2625, average of remaining 4?

A. 2635

B. 2636

C. 2637.5

D. 2640

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Correct Answer: Option C

Explanation:
Sum10=26300. Sum6=15750. Remaining=10550. Average=2637.5.

This question belongs to: Maths Average

Question #3

Average of 12 numbers 2720. If average of 8 is 2715, average of remaining 4?

A. 2728

B. 2725

C. 2732

D. 2730

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Correct Answer: Option D

Explanation:
Sum12=32640. Sum8=21720. Remaining=10920. Average=2730.

This question belongs to: Maths Average

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