Average of 10 numbers 1080. If average of 6 is 1075, average of remaining 4? MCQ with Answer and Explanation

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Average of 10 numbers 1080. If average of 6 is 1075, average of remaining 4?

A. 1087.5

B. 1090

C. 1085

D. 1086

Answer: Option A

Solution (By JKSSB Mock Tests)

Sum10=10800. Sum6=6450. Remaining=4350. Average=1087.5.

This question belongs to: Maths Average

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Question #1

Average of 1,3,5,...,19 (odd numbers).

A. 12

B. 9

C. 11

D. 10

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Correct Answer: Option D

Explanation:
10 terms, average 10.

This question belongs to: Maths Average

Question #2

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

A. 65

B. 62.5

C. 60

D. 63

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Correct Answer: Option B

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

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Question #3

Average of 10 numbers 2280. If average of 6 is 2275, average of remaining 4?

A. 2287.5

B. 2290

C. 2285

D. 2286

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Correct Answer: Option A

Explanation:
Sum10=22800. Sum6=13650. Remaining=9150. Average=2287.5.

This question belongs to: Maths Average

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