Average of 8 numbers 1300. If average of 5 is 1295, average of remaining 3? MCQ with Answer and Explanation

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Average of 8 numbers 1300. If average of 5 is 1295, average of remaining 3?

A. 1307

B. 1305

C. 1310

D. 1308.33

Answer: Option D

Solution (By JKSSB Mock Tests)

Sum8=10400. Sum5=6475. Remaining=3925. Average≈1308.33.

This question belongs to: Maths Average

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Question #1

Average of 10 numbers 2030. If average of 6 is 2025, average of remaining 4?

A. 2036

B. 2037.5

C. 2035

D. 2040

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Correct Answer: Option B

Explanation:
Sum10=20300. Sum6=12150. Remaining=8150. Average=2037.5.

This question belongs to: Maths Average

Question #2

Average of 10 numbers 1530. If average of 6 is 1525, average of remaining 4?

A. 1537.5

B. 1535

C. 1536

D. 1540

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Correct Answer: Option A

Explanation:
Sum10=15300. Sum6=9150. Remaining=6150. Average=1537.5.

This question belongs to: Maths Average

Question #3

Average of a,b is 10, average of b,c is 12, average of c,a is 14. Find a.

A. 8

B. 14

C. 10

D. 12

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Correct Answer: Option D

Explanation:
a+b=20, b+c=24, c+a=28. Add all 2(a+b+c)=72, a+b+c=36. a=36-24=12.

This question belongs to: Maths Average

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