Average of 50 and 60 is 55, average of 60 and 70 is 65, average of 50,60,70 is MCQ with Answer and Explanation

Average of 50 and 60 is 55, average of 60 and 70 is 65, average of 50,60,70 is

A. 58.33

B. 59

C. 60

D. 61

Answer: Option C

Sum=180. Average=60.

This question belongs to: Maths Average

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Question #1 Report Error

Average of 1545,2060,2575 is

A. 2055

B. 2050

C. 2070

D. 2060

Correct Answer: Option D

Explanation:
6180/3=2060.

This question belongs to: Maths Average

Question #2 Report Error

Average of 10 numbers 2280. If average of 6 is 2275, average of remaining 4?

A. 2290

B. 2285

C. 2287.5

D. 2286

Correct Answer: Option C

Explanation:
Sum10=22800. Sum6=13650. Remaining=9150. Average=2287.5.

This question belongs to: Maths Average

Question #3 Report Error

The average weight of 6 persons is 65 kg. If a person weighing 80 kg joins, what is the new average?

A. 68 kg

B. 66.67 kg

C. 67.14 kg

D. 67.5 kg

Correct Answer: Option C

Explanation:
Sum=6×65=390. New sum=390+80=470. New avg=470/7=67.14.

This question belongs to: Maths Average