The average of 7 numbers is 32. If each number is increased by 4, what is the new average? MCQ with Answer and Explanation

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The average of 7 numbers is 32. If each number is increased by 4, what is the new average?

A. 28

B. 32

C. 40

D. 36

Answer: Option D

Solution (By JKSSB Mock Tests)

New average =32+4=36.

This question belongs to: Maths Average

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Question #1

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The average weight of 7 persons is 58 kg. If a person weighing 68 kg joins, what is the new average?

A. 60 kg

B. 59.25 kg

C. 59.5 kg

D. 58.75 kg

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Correct Answer: Option B

Explanation:
Sum=7×58=406. New sum=406+68=474. New avg=474/8=59.25.

This question belongs to: Maths Average

Question #2

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Average weight of 20 girls 45 kg. If 5 boys average 55 kg included, new average for 25?

A. 48

B. 50

C. 46

D. 47

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Correct Answer: Option D

Explanation:
Girls 900. Boys 275. Total 1175/25=47.

This question belongs to: Maths Average

Question #3

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

A. 46

B. 47.5

C. 48

D. 45

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Correct Answer: Option B

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

This question belongs to: Maths Average

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