Average weight of 40 students 45 kg. If 10 more with average 50 kg join, new average? MCQ with Answer and Explanation

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Average weight of 40 students 45 kg. If 10 more with average 50 kg join, new average?

A. 46.25

B. 46

C. 45

D. 47

Answer: Option B

Solution (By JKExamLibrary)

Total old=1800. New=500. Total 2300 for 50. Average=46.

This question belongs to: Maths Average

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Question #1 Report Error

Average of 5 numbers 48. If average of 2 is 40, average of remaining 3?

A. 50

B. 52

C. 55

D. 53.33

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Correct Answer: Option D

Explanation:
Sum5=240. Sum2=80. Remaining=160. Average≈53.33.

This question belongs to: Maths Average

Question #2 Report Error

Average of 10 numbers 1330. If average of 6 is 1325, average of remaining 4?

A. 1335

B. 1337.5

C. 1340

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Correct Answer: Option B

Explanation:
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Question #3 Report Error

The average of 588,784 is

A. 686

B. 690

C. 680

D. 670

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