The average of some natural numbers is 15. If 30 is added to the first number an – OfficerPath

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The average of some natural numbers is 15. If 30 is added to the first number and 5 is subtracted from the last number the average becomes 17.5 then the number of natural numbers is -

Subject: MathematicsTopic: Average

A

20

B

30

C

15

D

10

Correct Answer: D

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