Question

Rahim is 4 times older than his son. After 10 years, father will be twice as old as his son.find present age of Rahim.​

Answer 1

Answer:

20 years

Step-by-step explanation:

let age of rahim = x yrs.

---------------son = y yrs.

according to 1st condition

x=4y-------------(1)

according to 2nd condition

(after 10 years)

rahim age = x+10 yrs.

son's age = y+10 yrs.

x+10=2(y+10)

putting eq. (1)

4y+10=2y+20

4y-2y=20-10

2y=10

y=5

x=4y. x=4×5=20

present age of rahim = 20 yrs.