Question 877041
Daughter's age= x
mum's age=2x
dad's age=5 2x
daughter mum dad=100
x 2x 5 2x=100
collect like terms
5x=100-5
5x=95
divide both sides by 5
5x/5=95/5
x=19
daughter=19
mum=38
dad=43
cheers