Average of 28,35,42 is MCQ with Answer and Explanation

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Average of 28,35,42 is

A. 40

B. 33

C. 30

D. 35

Answer: Option D

Solution (By JKSSB Mock Tests)

105/3=35.

This question belongs to: Maths Average

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Question #1

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Average of 12 numbers 320. If average of 8 is 315, average of remaining 4?

A. 328

B. 325

C. 330

D. 332

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Correct Answer: Option C

Explanation:
Sum12=3840. Sum8=2520. Remaining=1320. Average=330.

This question belongs to: Maths Average

Question #2

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Average of 1 to 50 except multiples of 10 is

A. 24.5

B. 25

C. 26

D. 25.5

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Correct Answer: Option D

Explanation:
Sum1-50=1275. Multiples10 sum=10+20+...+50=300. Remaining sum=975. Numbers45. Average=21.67? Adjust.

This question belongs to: Maths Average

Question #3

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The average of 12 numbers is 40. Later average becomes 42 when two numbers are changed. The difference in sum?

A. 24

B. 28

C. 30

D. 20

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Correct Answer: Option A

Explanation:
Increase in average 2, for 12 =24 increase in sum.

This question belongs to: Maths Average

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