Average of 8 numbers 2150. If average of 5 is 2145, average of remaining 3? MCQ with Answer and Explanation

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Average of 8 numbers 2150. If average of 5 is 2145, average of remaining 3?

A. 2160

B. 2155

C. 2157

D. 2158.33

Answer: Option D

Solution (By JKSSB Mock Tests)

Sum8=17200. Sum5=10725. Remaining=6475. Average≈2158.33.

This question belongs to: Maths Average

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Question #1

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The average of 25 numbers is 40. If the average of first 15 numbers is 38, what is the average of the remaining 10 numbers?

A. 43

B. 44

C. 42

D. 41

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Correct Answer: Option A

Explanation:
Total of 25 numbers = 1000. Total of first 15 = 570. Remaining total = 430. Average = 430/10 = 43.

This question belongs to: Maths Average

Question #2

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Average of 15 numbers 1860. If average of 9 is 1855, average of remaining 6?

A. 1868

B. 1870

C. 1867.5

D. 1865

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Correct Answer: Option C

Explanation:
Sum15=27900. Sum9=16695. Remaining=11205. Average=1867.5.

This question belongs to: Maths Average

Question #3

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Average of 10 numbers 2130. If average of 6 is 2125, average of remaining 4?

A. 2137.5

B. 2136

C. 2140

D. 2135

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Correct Answer: Option A

Explanation:
Sum10=21300. Sum6=12750. Remaining=8550. Average=2137.5.

This question belongs to: Maths Average

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