Average of 30, 40, 50, 60, 70 is MCQ with Answer and Explanation

Average of 30, 40, 50, 60, 70 is

A. 48

B. 50

C. 52

D. 55

Answer: Option B

Sum=250. Average=50.

This question belongs to: Maths Average

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Question #1 Report Error

Average of 9 numbers 2740. If average of 6 is 2735, average of remaining 3?

A. 2745

B. 2755

C. 2748

D. 2750

Correct Answer: Option D

Explanation:
Sum9=24660. Sum6=16410. Remaining=8250. Average=2750.

This question belongs to: Maths Average

Question #2 Report Error

Average of 10 numbers 2180. If average of 6 is 2175, average of remaining 4?

A. 2186

B. 2190

C. 2185

D. 2187.5

Correct Answer: Option D

Explanation:
Sum10=21800. Sum6=13050. Remaining=8750. Average=2187.5.

This question belongs to: Maths Average

Question #3 Report Error

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

A. 46

B. 45

C. 47

D. 46.25

Correct Answer: Option A

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

This question belongs to: Maths Average