Average of 12 numbers 40. If average of 8 is 38, average of remaining 4? MCQ with Answer and Explanation

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Average of 12 numbers 40. If average of 8 is 38, average of remaining 4?

A. 42

B. 44

C. 46

D. 45

Answer: Option B

Solution (By JKSSB Mock Tests)

Sum12=480. Sum8=304. Remaining=176. Average=44.

This question belongs to: Maths Average

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Question #1

Average of 12 numbers 1870. If average of 8 is 1865, average of remaining 4?

A. 1880

B. 1878

C. 1882

D. 1875

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Correct Answer: Option A

Explanation:
Sum12=22440. Sum8=14920. Remaining=7520. Average=1880.

This question belongs to: Maths Average

Question #2

Average of 5 consecutive even numbers is 26. What is the smallest number?

A. 22

B. 24

C. 18

D. 20

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Correct Answer: Option A

Explanation:
Let numbers be x, x+2, x+4, x+6, x+8. Average = x + 4 = 26. x = 22.

This question belongs to: Maths Average

Question #3

The average of 5 numbers is 44. If each number is decreased by 6, what is the new average?

A. 50

B. 32

C. 38

D. 44

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Correct Answer: Option C

Explanation:
New average =44-6=38.

This question belongs to: Maths Average

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