Average of 7 numbers 42. If average of 4 is 38, average of remaining 3? MCQ with Answer and Explanation

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Average of 7 numbers 42. If average of 4 is 38, average of remaining 3?

A. 50

B. 48

C. 46

D. 45

Answer: Option B

Solution (By JKExamLibrary)

Sum7=294. Sum4=152. Remaining=142. Average≈47.33 approx 48.

This question belongs to: Maths Average

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Question #1

Average of 8 numbers 1250. If average of 5 is 1245, average of remaining 3?

A. 1255

B. 1258.33

C. 1260

D. 1257

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Correct Answer: Option B

Explanation:
Sum8=10000. Sum5=6225. Remaining=3775. Average≈1258.33.

This question belongs to: Maths Average

Question #2

The average of 8 numbers is 44. If one number is 56, find the average of the remaining 7.

A. 42.29

B. 42

C. 43

D. 41.5

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Correct Answer: Option A

Explanation:
Sum=8×44=352. Remaining sum=352-56=296. Avg=296/7=42.29.

This question belongs to: Maths Average

Question #3

The average of 16,24,32,40,48,56 is

A. 36

B. 38

C. 30

D. 35

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Correct Answer: Option A

Explanation:
Sum=216. Average=36.

This question belongs to: Maths Average

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