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The average age of three brothers is 15years lf the age of two brothers is15 and12 find the age of third brother

Posted by Sanya Walia 8 years, 1 month ago

CBSE > Class 08 > Mathematics

1 answers

Varun Banda 8 years, 1 month ago

Average age=15yrs

Let the age of third brother be x

Age of two brothers are 12yr and 15 yr

Accor to ques:

12+15+x/3=15

27+x=45

X=45-27

X=18yrs

The age of third brother is 18yrs.

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CBSE > Class 08 > Mathematics