Average of 15 numbers 410. If average of 9 is 405, average of remaining 6? MCQ with Answer and Explanation

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Average of 15 numbers 410. If average of 9 is 405, average of remaining 6?

A. 415

B. 418

C. 420

D. 417.5

Answer: Option D

Solution (By JKSSB Mock Tests)

Sum15=6150. Sum9=3645. Remaining=2505. Average=417.5.

This question belongs to: Maths Average

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Question #1

Average of 15 numbers 1210. If average of 9 is 1205, average of remaining 6?

A. 1217.5

B. 1215

C. 1220

D. 1218

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Correct Answer: Option A

Explanation:
Sum15=18150. Sum9=10845. Remaining=7305. Average=1217.5.

This question belongs to: Maths Average

Question #2

Average of 645,860,1075 is

A. 860

B. 850

C. 870

D. 855

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Correct Answer: Option A

Explanation:
2580/3=860.

This question belongs to: Maths Average

Question #3

Average of 12 numbers 1820. If average of 8 is 1815, average of remaining 4?

A. 1828

B. 1832

C. 1825

D. 1830

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Correct Answer: Option D

Explanation:
Sum12=21840. Sum8=14520. Remaining=7320. Average=1830.

This question belongs to: Maths Average

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