The average of 5 consecutive even numbers is 12. What is the smallest number? MCQ with Answer and Explanation

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The average of 5 consecutive even numbers is 12. What is the smallest number?

A. 12

B. 6

C. 10

D. 8

Answer: Option D

Solution (By JKSSB Mock Tests)

In consecutive even numbers, average = middle number. So middle (3rd) =12. Smallest =12-4=8.

This question belongs to: Maths Average

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Question #1

The average of 50 numbers is 38. If 48 is replaced by 78, new average?

A. 38.6

B. 38

C. 39

D. 37

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Correct Answer: Option A

Explanation:
Change +30, increase 30/50=0.6. New=38.6.

This question belongs to: Maths Average

Question #2

Average of 40,60,80,100 is

A. 70

B. 65

C. 72

D. 75

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Correct Answer: Option A

Explanation:
280/4=70.

This question belongs to: Maths Average

Question #3

The average of 5 numbers is 26. If one number is 30, find the average of the rest.

A. 26

B. 24.5

C. 25.5

D. 25

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Correct Answer: Option D

Explanation:
Sum=5×26=130. Rest sum=130-30=100. Avg=100/4=25.

This question belongs to: Maths Average

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