What is the average of all numbers from 1 to 30 that are divisible by 6? MCQ with Answer and Explanation

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What is the average of all numbers from 1 to 30 that are divisible by 6?

A. 17

B. 18

C. 18.5

D. 17.5

Answer: Option B

Solution (By JKSSB Mock Tests)

Numbers:6,12,18,24,30 sum=90, count=5, avg=18.

This question belongs to: Maths Average

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Question #1

Average of 9 numbers 640. If average of 6 is 635, average of remaining 3?

A. 655

B. 648

C. 645

D. 650

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Correct Answer: Option D

Explanation:
Sum9=5760. Sum6=3810. Remaining=1950. Average=650.

This question belongs to: Maths Average

Question #2

The average of 5 numbers is 28. If one number is 34, find the average of the remaining 4.

A. 26.5

B. 25.5

C. 26

D. 27

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Correct Answer: Option A

Explanation:
Sum=5×28=140. Remaining sum=140-34=106. Avg=106/4=26.5.

This question belongs to: Maths Average

Question #3

The average of 5 consecutive even numbers is 28. Smallest number?

A. 26

B. 24

C. 22

D. 20

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Correct Answer: Option B

Explanation:
Average middle=28. Smallest =28-4=24.

This question belongs to: Maths Average

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