Question

average age of 3 sisters is 15. If the ages of 2 sisters are 12 years and
15 years, the age of the third sister is

Answer 1

Let the ages of sisters be x,y,z

Given that

⇒

3

x+y+z

=15

⇒x+y+z=45

Given that x,y=12,15

⇒12+15+z=45

⇒z=18

Therefore, age of third sister is 18years

Answered By=shreyash. .......

Answer 2

Step-by-step explanation:

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