The sum of three times of the age of son and the age of his father is 110 . If three times the age of his father is added to the age of son we get 170. what is the sum of their ages?Find their ages
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let the age of father be x
let the age of son be y
A/Q
x+3y=110
•=x=110-3y. -(1)
3x+y=170
3(110-3y)+y=170
330-9y+y=170
-8y=170-330
-8y= -160
8y=160
y=160÷8
y=20
x=110-3×20
x=110-60
x=50
let the age of son be y
A/Q
x+3y=110
•=x=110-3y. -(1)
3x+y=170
3(110-3y)+y=170
330-9y+y=170
-8y=170-330
-8y= -160
8y=160
y=160÷8
y=20
x=110-3×20
x=110-60
x=50
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