Average of 8 numbers 950. If average of 5 is 945, average of remaining 3? MCQ with Answer and Explanation

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Average of 8 numbers 950. If average of 5 is 945, average of remaining 3?

A. 960

B. 957

C. 958.33

D. 955

Answer: Option C

Solution (By JKSSB Mock Tests)

Sum8=7600. Sum5=4725. Remaining=2875. Average≈958.33.

This question belongs to: Maths Average

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Question #1

Average of 12 numbers 2770. If average of 8 is 2765, average of remaining 4?

A. 2778

B. 2775

C. 2782

D. 2780

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Correct Answer: Option D

Explanation:
Sum12=33240. Sum8=22120. Remaining=11120. Average=2780.

This question belongs to: Maths Average

Question #2

Average of 10 numbers is 40. If each number is multiplied by 2, what is the new average?

A. 20

B. 60

C. 80

D. 40

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Correct Answer: Option C

Explanation:
If each number is multiplied by a constant, average is also multiplied by the same. New average = 40 × 2 = 80.

This question belongs to: Maths Average

Question #3

Average of 9 numbers 540. If average of 6 is 535, average of remaining 3?

A. 548

B. 555

C. 550

D. 545

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Correct Answer: Option C

Explanation:
Sum9=4860. Sum6=3210. Remaining=1650. Average=550.

This question belongs to: Maths Average

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