Average of 25 numbers 70. If average of 15 is 75, average of remaining 10? MCQ with Answer and Explanation

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Average of 25 numbers 70. If average of 15 is 75, average of remaining 10?

A. 63

B. 65

C. 62.5

D. 60

Answer: Option C

Solution (By JKSSB Mock Tests)

Total=1750. Sum15=1125. Remaining=625/10=62.5.

This question belongs to: Maths Average

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Question #1

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

A. 45

B. 48

C. 46

D. 47.5

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Correct Answer: Option D

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

This question belongs to: Maths Average

Question #2

Average of 9 numbers 240. If average of 6 is 235, average of remaining 3?

A. 248

B. 245

C. 250

D. 255

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Correct Answer: Option C

Explanation:
Sum9=2160. Sum6=1410. Remaining=750. Average=250.

This question belongs to: Maths Average

Question #3

The average of 5 consecutive even numbers is 28. Smallest number?

A. 26

B. 24

C. 22

D. 20

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Correct Answer: Option B

Explanation:
Average middle=28. Smallest =28-4=24.

This question belongs to: Maths Average

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