The average of 4 numbers is 26. If each number is decreased by 2, what is the new average? MCQ with Answer and Explanation

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The average of 4 numbers is 26. If each number is decreased by 2, what is the new average?

A. 26

B. 28

C. 24

D. 22

Answer: Option C

Solution (By JKSSB Mock Tests)

New average =26-2=24.

This question belongs to: Maths Average

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Question #1

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What is the average of the first 9 odd numbers?

A. 8.5

B. 10

C. 9

D. 9.5

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Correct Answer: Option C

Explanation:
Sum of first n odd numbers = n^2 =9^2=81. Average=81/9=9.

This question belongs to: Maths Average

Question #2

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The average of 900,1200,1500 is

A. 1195

B. 1190

C. 1210

D. 1200

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Correct Answer: Option D

Explanation:
3600/3=1200.

This question belongs to: Maths Average

Question #3

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Average of 10 numbers 2480. If average of 6 is 2475, average of remaining 4?

A. 2490

B. 2486

C. 2485

D. 2487.5

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Correct Answer: Option D

Explanation:
Sum10=24800. Sum6=14850. Remaining=9950. Average=2487.5.

This question belongs to: Maths Average

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