Question

Dinesh is younger to roshan by 9 yers if their if their ages are in the respective ratio 4:5 how old dinesh

Answer 1

Let Roshan's age be x years.
Then, Dinesh 's age = (x - 9) years.
(x - 9)/x = 4/5
x = 45 Hence, Dinesh's age = (x - 9) = 36 years.

Answer 2

36 years is the age of Dinesh.

Given:

Dinesh is younger to Roshan by 9 years

Ages of Dinesh and Roshan are in the respective ratio 4:5

To find:

Age of Dinesh?

Solution:

Let the age of Roshan be x years.

Then, age of Dinesh = – 9 (given)

As ratio of ages is 4:5$\Longrightarrow \frac{x-9}{x}=\frac{4}{5}$

$\begin{array}{l}{\Rightarrow 5 x-45=4 x} \\ {\Rightarrow 5 x-4 x=45} \\ {\Rightarrow x=45}\end{array}$

age of Roshan is 45 years

age of Dinesh = 45 - 9 = 36 years

36 years is the age of Dinesh.