Question

after 20 years ravi's age will be 5:3 of the present age that find the present age of ravi​

Answer 1

Let Ravi's present age be x

According to the condition

$\: \: \: \: \: \: x + 20 = \frac{5}{3} x \\ 3(x + 20) = 5x \\ \: \: \: \: 3x + 60 = 5x \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: 60 = 5x - 3x \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: 60 = 2x \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: x = \frac{60}{2} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: x = 30$

Hence, Ravi's present age is 30 years