Average of 10 numbers 1480. If average of 6 is 1475, average of remaining 4? MCQ with Answer and Explanation

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Average of 10 numbers 1480. If average of 6 is 1475, average of remaining 4?

A. 1485

B. 1490

C. 1486

D. 1487.5

Answer: Option D

Solution (By JKSSB Mock Tests)

Sum10=14800. Sum6=8850. Remaining=5950. Average=1487.5.

This question belongs to: Maths Average

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Question #1

Average of 10 numbers 30. If two numbers 20 and 40 replaced by 25 and 35, new average?

A. 30

B. 28

C. 31

D. 29

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Correct Answer: Option A

Explanation:
Net change 0. Average remains 30.

This question belongs to: Maths Average

Question #2

Average of 9 numbers 690. If average of 6 is 685, average of remaining 3?

A. 698

B. 705

C. 700

D. 695

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Correct Answer: Option C

Explanation:
Sum9=6210. Sum6=4110. Remaining=2100. Average=700.

This question belongs to: Maths Average

Question #3

Average of 10,25,40,55 is

A. 32.5

B. 33

C. 30

D. 35

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Correct Answer: Option A

Explanation:
130/4=32.5.

This question belongs to: Maths Average

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