Average of 9 numbers 290. If average of 6 is 285, average of remaining 3? MCQ with Answer and Explanation

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Average of 9 numbers 290. If average of 6 is 285, average of remaining 3?

A. 298

B. 295

C. 300

D. 305

Answer: Option C

Solution (By JKSSB Mock Tests)

Sum9=2610. Sum6=1710. Remaining=900. Average=300.

This question belongs to: Maths Average

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Question #1

Average of 8 numbers 800. If average of 5 is 795, average of remaining 3?

A. 805

B. 807

C. 810

D. 808.33

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Correct Answer: Option D

Explanation:
Sum8=6400. Sum5=3975. Remaining=2425. Average≈808.33.

This question belongs to: Maths Average

Question #2

The average of 5 numbers is 18. If 3 numbers average 15, average of remaining 2?

A. 20

B. 21

C. 25

D. 22.5

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Correct Answer: Option D

Explanation:
Sum5=90. Sum3=45. Remaining=45. Average=22.5.

This question belongs to: Maths Average

Question #3

Average of 15 numbers 260. If average of 9 is 255, average of remaining 6?

A. 270

B. 267.5

C. 265

D. 268

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Correct Answer: Option B

Explanation:
Sum15=3900. Sum9=2295. Remaining=1605. Average=267.5.

This question belongs to: Maths Average

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