Average of 7 numbers 40. If average of 3 is 35, average of remaining 4? MCQ with Answer and Explanation

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Average of 7 numbers 40. If average of 3 is 35, average of remaining 4?

A. 45

B. 43.75

C. 42

D. 40

Answer: Option B

Solution (By JKSSB Mock Tests)

Sum7=280. Sum3=105. Remaining=175. Average=43.75.

This question belongs to: Maths Average

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Question #1

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The average of 3 numbers is 22. If the numbers are in the ratio 2:3:6, find the largest.

A. 30

B. 42

C. 36

D. 24

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Correct Answer: Option C

Explanation:
Sum=3×22=66. Ratio sum=2+3+6=11. Largest = (6/11)×66=36.

This question belongs to: Maths Average

Question #2

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Average of 10 numbers 1630. If average of 6 is 1625, average of remaining 4?

A. 1635

B. 1636

C. 1637.5

D. 1640

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Correct Answer: Option C

Explanation:
Sum10=16300. Sum6=9750. Remaining=6550. Average=1637.5.

This question belongs to: Maths Average

Question #3

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Average of 8 numbers 28. If average of 5 is 25, average of remaining 3?

A. 33.33

B. 30

C. 35

D. 32

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Correct Answer: Option A

Explanation:
Sum8=224. Sum5=125. Remaining=99. Average=33.

This question belongs to: Maths Average

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