The average of 6, 12, 18, 24, 30 is MCQ with Answer and Explanation

The average of 6, 12, 18, 24, 30 is

A. 22

B. 20

C. 15

D. 18

Answer: Option D

Sum=90. Average=18.

This question belongs to: Maths Average

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Question #1 Report Error

Average of 9 numbers 840. If average of 6 is 835, average of remaining 3?

A. 855

B. 845

C. 848

D. 850

Correct Answer: Option D

Explanation:
Sum9=7560. Sum6=5010. Remaining=2550. Average=850.

This question belongs to: Maths Average

Question #2 Report Error

The average of 7 numbers is 29. If each number is multiplied by 3, what is the new average?

A. 87

B. 86

C. 29

D. 58

Correct Answer: Option A

Explanation:
New average =29×3=87.

This question belongs to: Maths Average

Question #3 Report Error

Average of 4 numbers a,b,c,d is 20. If a=15, b=25, average of c,d?

A. 18

B. 20

C. 22.5

D. 25

Correct Answer: Option B

Explanation:
c+d=80 -40=40. Average=20.

This question belongs to: Maths Average