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. 25.5

C. 25

D. 24.5

Answer: Option B

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

Average of 10 numbers 1980. If average of 6 is 1975, average of remaining 4?

A. 1990

B. 1987.5

C. 1986

D. 1985

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Correct Answer: Option B

Explanation:
Sum10=19800. Sum6=11850. Remaining=7950. Average=1987.5.

This question belongs to: Maths Average

Question #2

The average of squares of first 4 natural numbers is

A. 9

B. 8.5

C. 7.5

D. 6.5

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Correct Answer: Option C

Explanation:
(1+4+9+16)/4=30/4=7.5.

This question belongs to: Maths Average

Question #3

The average of 6 numbers is 17. If one number is 20, find the average of the remaining 5.

A. 16.8

B. 17.0

C. 16.4

D. 16.6

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Correct Answer: Option C

Explanation:
Sum=6×17=102. Remaining sum=102-20=82. Avg=82/5=16.4.

This question belongs to: Maths Average

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