If average of 5 numbers is 36 and average of 3 is 30, average of remaining 2? MCQ with Answer and Explanation

If average of 5 numbers is 36 and average of 3 is 30, average of remaining 2?

A. 42

B. 40

C. 45

D. 48

Answer: Option C

Sum5=180. Sum3=90. Remaining=90. Average=45.

This question belongs to: Maths Average

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Question #1 Report Error

The average of 6 numbers is 15. If each number is increased by 7, what is the new average?

A. 8

B. 29

C. 15

D. 22

Correct Answer: Option D

Explanation:
New average =15+7=22.

This question belongs to: Maths Average

Question #2 Report Error

Find average of numbers from 1 to 100.

A. 50

B. 51

C. 50.5

D. 49.5

Correct Answer: Option C

Explanation:
(1+100)/2 = 50.5.

This question belongs to: Maths Average

Question #3 Report Error

Average of 9 numbers 1090. If average of 6 is 1085, average of remaining 3?

A. 1095

B. 1100

C. 1098

D. 1105

Correct Answer: Option B

Explanation:
Sum9=9810. Sum6=6510. Remaining=3300. Average=1100.

This question belongs to: Maths Average