Average of 315,420,525 is MCQ with Answer and Explanation

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Average of 315,420,525 is

A. 410

B. 430

C. 420

D. 415

Answer: Option C

Solution (By JKSSB Mock Tests)

1260/3=420.

This question belongs to: Maths Average

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Question #1

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The average of 5 numbers is 29. If one number is 35, find the average of the remaining 4.

A. 28

B. 26.5

C. 27.5

D. 27

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Correct Answer: Option C

Explanation:
Sum=5×29=145. Remaining sum=145-35=110. Avg=110/4=27.5.

This question belongs to: Maths Average

Question #2

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Average of 8 numbers 2300. If average of 5 is 2295, average of remaining 3?

A. 2310

B. 2307

C. 2305

D. 2308.33

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Correct Answer: Option D

Explanation:
Sum8=18400. Sum5=11475. Remaining=6925. Average≈2308.33.

This question belongs to: Maths Average

Question #3

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Find the average of first 10 natural numbers.

A. 5

B. 6

C. 6.5

D. 5.5

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Correct Answer: Option D

Explanation:
Sum of first 10 natural numbers = 10×11/2 = 55. Average = 55/10 = 5.5.

This question belongs to: Maths Average

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