Average of 15 numbers 1310. If average of 9 is 1305, average of remaining 6? MCQ with Answer and Explanation

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Average of 15 numbers 1310. If average of 9 is 1305, average of remaining 6?

A. 1320

B. 1317.5

C. 1318

D. 1315

Answer: Option B

Solution (By JKSSB Mock Tests)

Sum15=19650. Sum9=11745. Remaining=7905. Average=1317.5.

This question belongs to: Maths Average

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Question #1

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A cricketer has average 30 after 10 innings. How many runs to score in 11th to make average 32?

A. 52

B. 50

C. 55

D. 48

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Correct Answer: Option A

Explanation:
Total after 11 =11×32=352. Runs in 10=300. Required=52.

This question belongs to: Maths Average

Question #2

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Average of 585,780,975 is

A. 775

B. 770

C. 780

D. 790

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Correct Answer: Option C

Explanation:
2340/3=780.

This question belongs to: Maths Average

Question #3

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The average of 60,70,80 is

A. 75

B. 70

C. 65

D. 72

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Correct Answer: Option B

Explanation:
Sum=210. Average=70.

This question belongs to: Maths Average

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