The average of first 15 multiples of 4 is MCQ with Answer and Explanation

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The average of first 15 multiples of 4 is

A. 34

B. 30

C. 28

D. 32

Answer: Option D

Solution (By JKSSB Mock Tests)

4*(1+15)/2=32.

This question belongs to: Maths Average

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Question #1

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Average of 12 numbers 2170. If average of 8 is 2165, average of remaining 4?

A. 2175

B. 2180

C. 2178

D. 2182

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Correct Answer: Option B

Explanation:
Sum12=26040. Sum8=17320. Remaining=8720. Average=2180.

This question belongs to: Maths Average

Question #2

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The average of 4 numbers is 15. If one number is 0, what is the average of the other three?

A. 22.5

B. 15

C. 20

D. 18

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Correct Answer: Option C

Explanation:
Sum=4×15=60. Other sum=60-0=60. Avg=60/3=20.

This question belongs to: Maths Average

Question #3

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Average of 15,30,45,60 is

A. 35

B. 38

C. 37.5

D. 40

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Correct Answer: Option C

Explanation:
Sum=150. Average=37.5.

This question belongs to: Maths Average

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