Average of 10 numbers 1330. If average of 6 is 1325, average of remaining 4? MCQ with Answer and Explanation

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Average of 10 numbers 1330. If average of 6 is 1325, average of remaining 4?

A. 1335

B. 1340

C. 1337.5

D. 1336

Answer: Option C

Solution (By JKExamLibrary)

Sum10=13300. Sum6=7950. Remaining=5350. Average=1337.5.

This question belongs to: Maths Average

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Question #1

Average of 15 numbers 360. If average of 9 is 355, average of remaining 6?

A. 365

B. 367.5

C. 370

D. 368

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Correct Answer: Option B

Explanation:
Sum15=5400. Sum9=3195. Remaining=2205. Average=367.5.

This question belongs to: Maths Average

Question #2

Average of even numbers between 1 and 31 is

A. 16

B. 18

C. 15

D. 17

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Correct Answer: Option A

Explanation:
2 to 30, 15 numbers. Average (2+30)/2=16.

This question belongs to: Maths Average

Question #3

The average of 4 numbers is 20. If three numbers are 15,20,25, fourth is

A. 25

B. 20

C. 18

D. 22

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Correct Answer: Option B

Explanation:
Fourth=80-60=20.

This question belongs to: Maths Average

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