The average of 9 numbers is 35. If average of first 4 is 32, average of last 6 is 37, the 4th number? MCQ with Answer and Explanation

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The average of 9 numbers is 35. If average of first 4 is 32, average of last 6 is 37, the 4th number?

A. 36

B. 35

C. 34

D. 33

Answer: Option D

Solution (By JKSSB Mock Tests)

Sum9=315. Sum1-4=128. Sum4-9=222. 4th=128+222-315=35.

This question belongs to: Maths Average

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Question #1

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Average of 9 numbers 1790. If average of 6 is 1785, average of remaining 3?

A. 1800

B. 1798

C. 1805

D. 1795

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Correct Answer: Option A

Explanation:
Sum9=16110. Sum6=10710. Remaining=5400. Average=1800.

This question belongs to: Maths Average

Question #2

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

A. 29

B. 27

C. 26

D. 31

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Correct Answer: Option A

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

This question belongs to: Maths Average

Question #3

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The average of 4 numbers is 24. If each number is multiplied by 4, what is the new average?

A. 48

B. 72

C. 24

D. 96

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Correct Answer: Option D

Explanation:
New average =24×4=96.

This question belongs to: Maths Average

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