Question

The ages of Rohith and Hima are in the ratio 5:7. Four years later, their ages will be in the ratio 3:4. Find their ages​

Answer 1

Answer:

Solution:

Let the Ages of Hari and Harry be 5x and 7x years.

According to question, \frac{5x+4}{7x+4}=\frac{3}{4}

7x+4

5x+4

=

4

3

\Rightarrow\ 4\left(5x+4\right)=3\left(7x+4\right)⇒ 4(5x+4)=3(7x+4)

\Rightarrow\ 20x+16=21x+12⇒ 20x+16=21x+12

\Rightarrow\ 20x-21x=12-16⇒ 20x−21x=12−16

\Rightarrow\ -x=-4⇒ −x=−4

\Rightarrow\ x=4⇒ x=4

Hence, the age of Hari = 5x= 4 x 5 = 20 years.

And the age of Harry = 7x = 7 x 4 = 28 years.

Answer 2

Answer:

hope it will be helpful...