The average of 28,42,56 is MCQ with Answer and Explanation

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The average of 28,42,56 is

A. 38

B. 42

C. 45

D. 40

Answer: Option B

Solution (By JKSSB Mock Tests)

126/3=42.

This question belongs to: Maths Average

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Question #1

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Average of 9 numbers 2740. If average of 6 is 2735, average of remaining 3?

A. 2750

B. 2755

C. 2745

D. 2748

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Correct Answer: Option A

Explanation:
Sum9=24660. Sum6=16410. Remaining=8250. Average=2750.

This question belongs to: Maths Average

Question #2

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Average of multiples of 8 from 8 to 64 is

A. 36

B. 40

C. 30

D. 32

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Correct Answer: Option A

Explanation:
(8+64)/2=36.

This question belongs to: Maths Average

Question #3

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What is the average of the first 5 prime numbers?

A. 5.8

B. 5.4

C. 5.6

D. 6.0

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Correct Answer: Option C

Explanation:
Primes: 2,3,5,7,11 sum=28, avg=28/5=5.6.

This question belongs to: Maths Average

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