Average of 15 numbers 460. If average of 9 is 455, average of remaining 6? MCQ with Answer and Explanation

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Average of 15 numbers 460. If average of 9 is 455, average of remaining 6?

A. 468

B. 465

C. 467.5

D. 470

Answer: Option C

Solution (By JKSSB Mock Tests)

Sum15=6900. Sum9=4095. Remaining=2805. Average=467.5.

This question belongs to: Maths Average

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Question #1

Average marks of 25 students 60. If marks of one 80 included instead of 40, new average?

A. 60

B. 62

C. 61.6

D. 61

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Correct Answer: Option C

Explanation:
Increase 40, /25=1.6, new 61.6.

This question belongs to: Maths Average

Question #2

Average of 8 numbers 140. If average of 5 is 135, average of remaining 3?

A. 147

B. 148.33

C. 145

D. 150

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Correct Answer: Option B

Explanation:
Sum8=1120. Sum5=675. Remaining=445. Average≈148.33.

This question belongs to: Maths Average

Question #3

The average of 900,1200,1500 is

A. 1200

B. 1190

C. 1210

D. 1195

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Correct Answer: Option A

Explanation:
3600/3=1200.

This question belongs to: Maths Average

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