Question

the sum of the ages of a father and his daughter is 85yrs. five years ago, the father was exactly four times as old as his daughter. the present age of the father is?

Answer 1

Answer:

Step-by-step explanation:

x+y=85

x-5=4(y-5)

x-5=4y-20

therefore x=4y-15

substituting in 1 we get

5y-15=85

5y=100

therefore y=20

x=85-y

65

thus values of x and y are 65 and 20 respectively

x=69