Average of 18 numbers 50. If 6 numbers average 55, average of remaining 12? MCQ with Answer and Explanation

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Average of 18 numbers 50. If 6 numbers average 55, average of remaining 12?

A. 47.5

B. 48

C. 46

D. 45

Answer: Option A

Solution (By JKExamLibrary)

Sum18=900. Sum6=330. Remaining=570/12=47.5.

This question belongs to: Maths Average

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Question #1

The average of 3 numbers is 28. If two numbers are 25 and 30, find the third.

A. 31

B. 29

C. 27

D. 26

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Correct Answer: Option B

Explanation:
Sum=3×28=84. Third =84-25-30=29.

This question belongs to: Maths Average

Question #2

The average of 300,400,500 is

A. 395

B. 400

C. 390

D. 410

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Correct Answer: Option B

Explanation:
1200/3=400.

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Question #3

Average of 1185,1580,1975 is

A. 1575

B. 1570

C. 1590

D. 1580

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Correct Answer: Option D

Explanation:
4740/3=1580.

This question belongs to: Maths Average

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