Average of 25 numbers 85. If average of 15 is 90, average of remaining 10? MCQ with Answer and Explanation

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Average of 25 numbers 85. If average of 15 is 90, average of remaining 10?

A. 80

B. 77.5

C. 78

D. 75

Answer: Option B

Solution (By JKExamLibrary)

Total=2125. Sum15=1350. Remaining=775/10=77.5.

This question belongs to: Maths Average

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Question #1

Average of 25 numbers 80. If average of 10 is 85, average of remaining 15?

A. 75

B. 77

C. 76.67

D. 78

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Correct Answer: Option C

Explanation:
Total=2000. Sum10=850. Remaining=1150/15≈76.67.

This question belongs to: Maths Average

Question #2

The average of 660,880,1100 is

A. 870

B. 880

C. 875

D. 890

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Correct Answer: Option B

Explanation:
2640/3=880.

This question belongs to: Maths Average

Question #3

Average of 8 numbers 300. If average of 5 is 295, average of remaining 3?

A. 308.33

B. 307

C. 310

D. 305

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Correct Answer: Option A

Explanation:
Sum8=2400. Sum5=1475. Remaining=925. Average≈308.33.

This question belongs to: Maths Average

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