Find the average of all numbers from 1 to 20 that are divisible by 4. MCQ with Answer and Explanation

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Find the average of all numbers from 1 to 20 that are divisible by 4.

A. 12.5

B. 11

C. 12

D. 13

Answer: Option C

Solution (By JKSSB Mock Tests)

Numbers: 4,8,12,16,20 sum=60, count=5, avg=12.

This question belongs to: Maths Average

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Practice More Average Questions

Question #1

Average of first 10 multiples of 9 is

A. 45

B. 50

C. 54.5

D. 49.5

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Correct Answer: Option D

Explanation:
9*(1+10)/2 =9*5.5=49.5.

This question belongs to: Maths Average

Question #2

Average of 12 numbers 1620. If average of 8 is 1615, average of remaining 4?

A. 1630

B. 1632

C. 1628

D. 1625

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Correct Answer: Option A

Explanation:
Sum12=19440. Sum8=12920. Remaining=6520. Average=1630.

This question belongs to: Maths Average

Question #3

Average of 25 numbers 65. If average of 10 is 60, average of remaining 15?

A. 66

B. 68

C. 67

D. 70

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Correct Answer: Option B

Explanation:
Sum25=1625. Sum10=600. Remaining=1025/15≈68.33 approx 68.

This question belongs to: Maths Average

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