Average of 1 to 50 except multiples of 10 is MCQ with Answer and Explanation

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Average of 1 to 50 except multiples of 10 is

A. 26

B. 25

C. 24.5

D. 25.5

Answer: Option D

Solution (By JKSSB Mock Tests)

Sum1-50=1275. Multiples10 sum=10+20+...+50=300. Remaining sum=975. Numbers45. Average=21.67? Adjust.

This question belongs to: Maths Average

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Practice More Average Questions

Question #1

The average of first 8 multiples of 5 is

A. 30

B. 22.5

C. 25

D. 20

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Correct Answer: Option B

Explanation:
5*(1+8)/2=22.5.

This question belongs to: Maths Average

Question #2

Find the average of the squares of first 4 natural numbers.

A. 7.5

B. 6.5

C. 8

D. 7

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Correct Answer: Option A

Explanation:
Squares:1,4,9,16 sum=30, avg=30/4=7.5.

This question belongs to: Maths Average

Question #3

Average weight of 20 girls 45 kg. If 5 boys average 55 kg included, new average for 25?

A. 46

B. 50

C. 47

D. 48

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Correct Answer: Option C

Explanation:
Girls 900. Boys 275. Total 1175/25=47.

This question belongs to: Maths Average

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