Average of 12 numbers 1520. If average of 8 is 1515, average of remaining 4? MCQ with Answer and Explanation

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Average of 12 numbers 1520. If average of 8 is 1515, average of remaining 4?

A. 1525

B. 1530

C. 1528

D. 1532

Answer: Option B

Solution (By JKSSB Mock Tests)

Sum12=18240. Sum8=12120. Remaining=6120. Average=1530.

This question belongs to: Maths Average

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Question #1

Average of 15 numbers 410. If average of 9 is 405, average of remaining 6?

A. 417.5

B. 420

C. 418

D. 415

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Correct Answer: Option A

Explanation:
Sum15=6150. Sum9=3645. Remaining=2505. Average=417.5.

This question belongs to: Maths Average

Question #2

The average of 7 numbers is 18. If one number is 24, what is the average of the remaining 6 numbers?

A. 16

B. 18

C. 19

D. 17

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Correct Answer: Option D

Explanation:
Total = 7×18 = 126. Remaining total = 126−24 = 102. Average = 102/6 = 17.

This question belongs to: Maths Average

Question #3

Average of 12 numbers 2170. If average of 8 is 2165, average of remaining 4?

A. 2178

B. 2175

C. 2180

D. 2182

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Correct Answer: Option C

Explanation:
Sum12=26040. Sum8=17320. Remaining=8720. Average=2180.

This question belongs to: Maths Average

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