Average of 1255,2510 is MCQ with Answer and Explanation

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Average of 1255,2510 is

A. 1882.5

B. 1890

C. 1870

D. 1880

Answer: Option A

Solution (By JKExamLibrary)

1882.5.

This question belongs to: Maths Average

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Question #1

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Average of 12 numbers 420. If average of 8 is 415, average of remaining 4?

A. 432

B. 425

C. 428

D. 430

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Correct Answer: Option D

Explanation:
Sum12=5040. Sum8=3320. Remaining=1720. Average=430.

This question belongs to: Maths Average

Question #2

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Average of 30,45,60,75 is

A. 55

B. 50

C. 52.5

D. 45

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Correct Answer: Option C

Explanation:
210/4=52.5.

This question belongs to: Maths Average

Question #3

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The average age of 30 boys is 14 years. If 2 more boys of age 15 and 16 join, new average?

A. 14.2

B. 14

C. 14.125

D. 14.5

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Correct Answer: Option C

Explanation:
Total age=420. New total=420+15+16=451. New average=451/32=14.09375 ≈14.1 but approx 14.125 yes.

This question belongs to: Maths Average

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