If average of 20 numbers is 30 and 10 numbers average 25, average of remaining 10? MCQ with Answer and Explanation

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If average of 20 numbers is 30 and 10 numbers average 25, average of remaining 10?

A. 35

B. 40

C. 32.5

D. 30

Answer: Option A

Solution (By JKSSB Mock Tests)

Sum20=600. Sum10=250. Remaining=350. Average=35.

This question belongs to: Maths Average

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Practice More Average Questions

Question #1

The average of 1590,2120,2650 is

A. 2130

B. 2120

C. 2110

D. 2115

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Correct Answer: Option B

Explanation:
6360/3=2120.

This question belongs to: Maths Average

Question #2

The average of 3 numbers is 40. If one number is 30% more than average of other two, find the numbers? But simple: assume values.

A. 30,40,50

B. 25,40,55

C. 36,40,44

D. 35,40,45

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Correct Answer: Option A

Explanation:
Sum=120. Check 30% more.

This question belongs to: Maths Average

Question #3

Average of 12 numbers 1020. If average of 8 is 1015, average of remaining 4?

A. 1025

B. 1028

C. 1030

D. 1032

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Correct Answer: Option C

Explanation:
Sum12=12240. Sum8=8120. Remaining=4120. Average=1030.

This question belongs to: Maths Average

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