Average of all three digit numbers is MCQ with Answer and Explanation

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Average of all three digit numbers is

A. 549.5

B. 600

C. 500

D. 550

Answer: Option A

Solution (By JKSSB Mock Tests)

(100+999)/2=549.5.

This question belongs to: Maths Average

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Question #1

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The average of 5 numbers is 24. If each number is divided by 3, what is the new average?

A. 6

B. 8

C. 9

D. 7

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Correct Answer: Option B

Explanation:
New average =24/3=8.

This question belongs to: Maths Average

Question #2

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What is the average of the first 10 odd numbers?

A. 10.5

B. 10

C. 11

D. 9.5

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Correct Answer: Option B

Explanation:
Sum of first 10 odd =10^2=100. Average=100/10=10.

This question belongs to: Maths Average

Question #3

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Average of 9 numbers 1990. If average of 6 is 1985, average of remaining 3?

A. 2000

B. 1995

C. 1998

D. 2005

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Correct Answer: Option A

Explanation:
Sum9=17910. Sum6=11910. Remaining=6000. Average=2000.

This question belongs to: Maths Average

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