Question

The age of a Father is four times the age of his child. In 20 yrs coming the age of the child will be half of the age of the father. Find the age of the father now?

Answer 1

Answer:

80 years old age

Step-by-step explanation:

because,I multiply 20 into 4 so, the answer is 80

Answer 2

Answer:

40

Step-by-step explanation:

let father age be y and son's age be X

y=4x

after 20 years son's age X+20 and father's age y+20

X+20=(y+20)/2

X+20=(4x+20)/2

2x+40=4x+20

40-20=4x-2x

2x=20

X=10 i.e son's age=10

father's age y=4(10)=40