Average of 15 numbers 1260. If average of 9 is 1255, average of remaining 6? MCQ with Answer and Explanation

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Average of 15 numbers 1260. If average of 9 is 1255, average of remaining 6?

A. 1270

B. 1267.5

C. 1265

D. 1268

Answer: Option B

Solution (By JKSSB Mock Tests)

Sum15=18900. Sum9=11295. Remaining=7605. Average=1267.5.

This question belongs to: Maths Average

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Question #1

The average of 360,480,600 is

A. 475

B. 470

C. 490

D. 480

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Correct Answer: Option D

Explanation:
1440/3=480.

This question belongs to: Maths Average

Question #2

Average of 12 numbers 1020. If average of 8 is 1015, average of remaining 4?

A. 1025

B. 1028

C. 1030

D. 1032

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Correct Answer: Option C

Explanation:
Sum12=12240. Sum8=8120. Remaining=4120. Average=1030.

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Question #3

The average of 20 and 40 is 30, average of 40 and 60 is 50, average of 20,40,60 is

A. 38

B. 45

C. 40

D. 42

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Correct Answer: Option C

Explanation:
Sum=120. Average=40.

This question belongs to: Maths Average

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