Average of 15 numbers 760. If average of 9 is 755, average of remaining 6? MCQ with Answer and Explanation

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Average of 15 numbers 760. If average of 9 is 755, average of remaining 6?

A. 770

B. 765

C. 767.5

D. 768

Answer: Option C

Solution (By JKSSB Mock Tests)

Sum15=11400. Sum9=6795. Remaining=4605. Average=767.5.

This question belongs to: Maths Average

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Practice More Average Questions

Question #1

The average of 6, 12, 18, 24, 30 is

A. 20

B. 15

C. 18

D. 22

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Correct Answer: Option C

Explanation:
Sum=90. Average=18.

This question belongs to: Maths Average

Question #2

The average weight of 6 persons is 65 kg. If a person weighing 80 kg joins, what is the new average?

A. 68 kg

B. 67.14 kg

C. 66.67 kg

D. 67.5 kg

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Correct Answer: Option B

Explanation:
Sum=6×65=390. New sum=390+80=470. New avg=470/7=67.14.

This question belongs to: Maths Average

Question #3

Average of 9 numbers 2340. If average of 6 is 2335, average of remaining 3?

A. 2348

B. 2345

C. 2350

D. 2355

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Correct Answer: Option C

Explanation:
Sum9=21060. Sum6=14010. Remaining=7050. Average=2350.

This question belongs to: Maths Average

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