Question

by adding one third age of salims father before 5 years to the half of present age of his father we get 20 then find the present age of salims father find the equation

Answer 1

Heya

Let salim's father's age be x

According to the question,

(1/3) (x-5) + (1/2)x = 20

(x-5)/3 + x/2 = 20

2(x-5)/6 + 3x/2 = 20

(2x-10+3x)/6 = 20

(5x-10)/6=20

5x-10 = 120

5x = 130

x= 130/5

x= 26

Salim's father's age is 26yrs

Answer 2

Let salim's father's age be a
∴ (a-5)+xa=20
∴ -+=20
∴ +=20
∴ =20
∴ 2a-10+3a=20x6
∴ 2a+3a=120+10
∴ 5a=130
∴ α=
∴ α=26
∴ Salim's father's age is 26 years.