Question

Pls help: Mr edward is now 3 times as old as his daughter. In 15 years time, the sum of their ages will be 86.

A) find their ages now

B) how old was mr edwards when his daughter was born

Answer 1

A)53.25

B)35.5

Explanation:

86-15=71

add his times and hers

3+1=4

71/4=17.75

17.75*3=53.25

53.25-17.75=35.5

Answer 2

Daughter age = x
father= 3x

3x+15+x+15=86
4x+30=86

4x+30=86
-30=-30
========
4x =56....divide both sides by 4

x=14, daughter's age
3x=3(14)=42, father's age