3 year ago age of father was 7 times as his son. present age of father is 5 times as hi son what is present age of father and son
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let the age of fathe be x and the age of his don be y then,
x-3=7(y-3)
x-3=7y-21
x-7y=-18 ...i
also, x=5y ...ii
then puttinng the value of x in (i) we get,
5y-7y=-18
-2y=-18
minus sign cancels out
y=18/2
y=9
hence son's age id 9 and by (ii) we know thw x=5(9)
then x=45
answer is son's age 9 and his father's age is 45
x-3=7(y-3)
x-3=7y-21
x-7y=-18 ...i
also, x=5y ...ii
then puttinng the value of x in (i) we get,
5y-7y=-18
-2y=-18
minus sign cancels out
y=18/2
y=9
hence son's age id 9 and by (ii) we know thw x=5(9)
then x=45
answer is son's age 9 and his father's age is 45
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