Average of 4,8,12,...,36 is MCQ with Answer and Explanation

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Average of 4,8,12,...,36 is

A. 20

B. 18

C. 24

D. 22

Answer: Option A

Solution (By JKSSB Mock Tests)

9 numbers. Average=(4+36)/2=20.

This question belongs to: Maths Average

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Question #1

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The average of 8 numbers is 34. If each number is multiplied by 1.5, what is the new average?

A. 34

B. 25.5

C. 51

D. 68

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Correct Answer: Option C

Explanation:
New average =34×1.5=51.

This question belongs to: Maths Average

Question #2

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

A. 2640

B. 2637.5

C. 2635

D. 2636

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Correct Answer: Option B

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

This question belongs to: Maths Average

Question #3

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Average of 40,60,80,100 is

A. 65

B. 70

C. 75

D. 72

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Correct Answer: Option B

Explanation:
280/4=70.

This question belongs to: Maths Average

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