Average of 10 numbers 1680. If average of 6 is 1675, average of remaining 4? MCQ with Answer and Explanation

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Average of 10 numbers 1680. If average of 6 is 1675, average of remaining 4?

A. 1686

B. 1685

C. 1687.5

D. 1690

Answer: Option C

Solution (By JKSSB Mock Tests)

Sum10=16800. Sum6=10050. Remaining=6750. Average=1687.5.

This question belongs to: Maths Average

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Question #1

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

A. 958.33

B. 957

C. 955

D. 960

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Correct Answer: Option A

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

This question belongs to: Maths Average

Question #2

The average of 10 numbers is 35. If each number is increased by 5, what will be the new average?

A. 40

B. 42

C. 35

D. 38

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Correct Answer: Option A

Explanation:
When each number increases by 5, the average also increases by 5. New average = 35+5 = 40.

This question belongs to: Maths Average

Question #3

Average of 9 numbers 2190. If average of 6 is 2185, average of remaining 3?

A. 2205

B. 2200

C. 2198

D. 2195

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Correct Answer: Option B

Explanation:
Sum9=19710. Sum6=13110. Remaining=6600. Average=2200.

This question belongs to: Maths Average

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