Average of 1 to 20 is MCQ with Answer and Explanation

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Average of 1 to 20 is

A. 9.5

B. 10.5

C. 10

D. 11

Answer: Option B

Solution (By JKSSB Mock Tests)

(20×21)/2 /20 =10.5.

This question belongs to: Maths Average

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Question #1

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Average of 465,620,775 is

A. 630

B. 615

C. 620

D. 610

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Correct Answer: Option C

Explanation:
1860/3=620.

This question belongs to: Maths Average

Question #2

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Average of 15 numbers 210. If average of 9 is 205, average of remaining 6?

A. 217.5

B. 218

C. 220

D. 215

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Correct Answer: Option A

Explanation:
Sum15=3150. Sum9=1845. Remaining=1305. Average=217.5.

This question belongs to: Maths Average

Question #3

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The average of 3 numbers is 15. If each number is multiplied by 4, what is the new average?

A. 60

B. 45

C. 75

D. 30

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Correct Answer: Option A

Explanation:
New average =15×4=60.

This question belongs to: Maths Average

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