The average of 510,680,850 is MCQ with Answer and Explanation

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The average of 510,680,850 is

A. 680

B. 675

C. 690

D. 670

Answer: Option A

Solution (By JKSSB Mock Tests)

2040/3=680.

This question belongs to: Maths Average

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Question #1

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Average of 8 numbers 2200. If average of 5 is 2195, average of remaining 3?

A. 2207

B. 2208.33

C. 2210

D. 2205

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Correct Answer: Option B

Explanation:
Sum8=17600. Sum5=10975. Remaining=6625. Average≈2208.33.

This question belongs to: Maths Average

Question #2

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What is the average of cubes of first 3 natural numbers?

A. 12

B. 27

C. 36

D. 9

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Correct Answer: Option D

Explanation:
(1+8+27)/3=36/3=12? Wait, adjust: (1+8+27)=36, 36/3=12.

This question belongs to: Maths Average

Question #3

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Average of 20 numbers is 45. If 5 numbers with average 50 are removed, new average?

A. 42

B. 43.33

C. 44

D. 45

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Correct Answer: Option B

Explanation:
Sum20=900. Sum5=250. Remaining sum=650. Numbers15. Average≈43.33.

This question belongs to: Maths Average

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