The ages of a,b,care in the ratio 7,9,12and their sum of ages 168.find the ages of a,b,c.also find the ages of A after 7 years
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let the no be 7x ,9x and 12x
the age of a ,b, c
7x+9x+12x = 168
28x= 168
x=168/28
x=6
so, 7x = 7*6=42
9x=9*6= 54
12x =12*6=72
the age of a ,b, c
7x+9x+12x = 168
28x= 168
x=168/28
x=6
so, 7x = 7*6=42
9x=9*6= 54
12x =12*6=72
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