Question

Arnav is twice as old as Bala. five years ago Arnav was three times as old as Bala. Find their present ages​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:-

Let the age of Bala be x years and Arnav be y years.

Given:

Arnav is twice as old as Bala .

→ y = 2x -- equation (1)

And,

Five years ago Arnav is thrice the age of Bala.

Arnav's age before 5 years = 3*(Age of Bala before 5 years)

→ y - 5 = 3(x - 5)

Substitute "x" value from equation (1)

→ 2x - 5 = 3x - 15

→ - 5 + 15 = 3x - 2x

→ x = 10

Substitute x value in equation (1)

→ y = 2x

→ y = 2(10)

→ y = 20

Hence the age of Bala is 10 years and that of Arnav is 20 years.