Question 625768
5 years ago

Dad's age = x years
my age = x/8

Now
Dad's age = x+5
my age = x/8 +5 

sum of ages is 55 

{{{(x/8) +x+ 5+5=55}}}

{{{(x/8) +x+ 10 = 55}}}

multiply equation by 8, the LCD

x+8x 80 = 55*8
9x+80 = 440
9x= 360
x= 40

Dad's age 5 years ago = 40 years
Now his age is 40 +5 = 45 years.

My age was 40/8 = 5 years.
Now my age is 5 + 5 = 10 years