Average of 20 numbers 60. If each is halved, new average? MCQ with Answer and Explanation

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Average of 20 numbers 60. If each is halved, new average?

A. 120

B. 60

C. 30

D. 15

Answer: Option C

Solution (By JKSSB Mock Tests)

30.

This question belongs to: Maths Average

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Question #1

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Average of 15 numbers 1710. If average of 9 is 1705, average of remaining 6?

A. 1718

B. 1720

C. 1715

D. 1717.5

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Correct Answer: Option D

Explanation:
Sum15=25650. Sum9=15345. Remaining=10305. Average=1717.5.

This question belongs to: Maths Average

Question #2

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Average of 195,260,325 is

A. 250

B. 270

C. 255

D. 260

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Correct Answer: Option D

Explanation:
780/3=260.

This question belongs to: Maths Average

Question #3

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Average of 8 numbers 32. If average of 3 is 28, average of remaining 5?

A. 34.4

B. 33

C. 36

D. 35

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Correct Answer: Option A

Explanation:
Sum8=256. Sum3=84. Remaining=172. Average=34.4.

This question belongs to: Maths Average

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