A woman is four times as old as her daughter five years ago the sum of their ages was 35. Find their ages
m-5 + d-5 = 35
so
m + d = 45
but m = 4 d
so
4 d + d = 5 d = 45
d = 9
m = 4 d = 36
so
m + d = 45
but m = 4 d
so
4 d + d = 5 d = 45
d = 9
m = 4 d = 36