Question

After 20 years, Manoj will be 5 times as old as he is now. Find his present age

Answer 1

Answer:

5 years

Step-by-step explanation:

Let Manoj's present age be 'x' years

Then Manoj's age after 20 years = x + 20

According to the question,

x + 20 = 5x

⇒ 5x - x = 20

⇒ 4x = 20

⇒ x = 20/4

⇒ x = 5

Therefore, Manoj's present age = 'x' years = 5 years

Answer 2

Answer:

let his present age be =x

he will be 5 times=5x

after 20 years=x+20

x+20=5x

20=5x-x

20=4x

20/4=x

5=x

PROVE:

x+20=5(x)

5+20=5(5)

25=25

HENCE PROVED

Hope it will help you!!