If average of 25 students is 50 and average of 15 is 60, average of remaining 10? MCQ with Answer and Explanation

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If average of 25 students is 50 and average of 15 is 60, average of remaining 10?

A. 35

B. 40

C. 30

D. 45

Answer: Option A

Solution (By JKExamLibrary)

Sum25=1250. Sum15=900. Remaining sum=350. Average=35.

This question belongs to: Maths Average

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Practice More Average Questions

Question #1 Report Error

If average of 5 consecutive multiples of 4 is 32, what is the largest?

A. 36

B. 48

C. 44

D. 40

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Correct Answer: Option D

Explanation:
Numbers 20,24,28,32,36 avg 28 no. 24,28,32,36,40 avg 32. Largest 40.

This question belongs to: Maths Average

Question #2 Report Error

The average age of 6 children is 10 years. If the age of one child is 8, find the average age of the remaining 5.

A. 11

B. 10.4

C. 10

D. 9.6

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Correct Answer: Option B

Explanation:
Sum=6×10=60. Remaining sum=60-8=52. Avg=52/5=10.4.

This question belongs to: Maths Average

Question #3 Report Error

Average of 10 numbers 2180. If average of 6 is 2175, average of remaining 4?

A. 2186

B. 2190

C. 2187.5

D. 2185

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Correct Answer: Option C

Explanation:
Sum10=21800. Sum6=13050. Remaining=8750. Average=2187.5.

This question belongs to: Maths Average

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