The average of 8 numbers is 35. If each number is multiplied by 2, what is the new average? MCQ with Answer and Explanation

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The average of 8 numbers is 35. If each number is multiplied by 2, what is the new average?

A. 70

B. 35

C. 105

D. 17.5

Answer: Option A

Solution (By JKSSB Mock Tests)

New average = 35×2=70.

This question belongs to: Maths Average

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Question #1

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The average age of father and son is 30. If father is 45, son's age?

A. 25

B. 10

C. 20

D. 15

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Correct Answer: Option D

Explanation:
Sum =60. Son=60-45=15.

This question belongs to: Maths Average

Question #2

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The average age of 6 children is 10 years. If the age of one child is 8, find the average age of the remaining 5.

A. 11

B. 10

C. 10.4

D. 9.6

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Correct Answer: Option C

Explanation:
Sum=6×10=60. Remaining sum=60-8=52. Avg=52/5=10.4.

This question belongs to: Maths Average

Question #3

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Average of 25 numbers 60. If 5 numbers average 70, average of remaining 20?

A. 55

B. 58

C. 57.5

D. 56

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Correct Answer: Option C

Explanation:
Total=1500. 5=350. Remaining=1150/20=57.5.

This question belongs to: Maths Average

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