Math, asked by kasthurikannan2, 3 months ago

the average age of 4 boys is 22.5 is it decreases by 6 months when a new boy is included in the group.find the age of the new boy.

Answers

Answered by shreekrishna35pdv8u8

0

Step-by-step explanation:

Average age =22.5

no. of boys = 4

TOTAL AGE = 22.5 x 4 = 90

NOW NO. OF BOYS =5

NEW AVERAGE AGE = 22.5-0.6=21.9

TOTAL AGE = 21.9 x 5 = 109.5

Age of new boy = 109.5 - 90 = 19.5

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