Question

the ages of arun and Rahul are in ratio 7: 5 ten year hence the ratio of their ages will be 9:7 find their Parsent ages​

Answer 1

Answer:

Arun: 35 years

Rahul: 25 years

Step-by-step explanation:

Let Rahul's and Karan's age be 7x and 5x respectively.

After 10 yrs, their ages are 7x + 10, 5x + 10 respectively.

As per the given condition, Ratio after 10 years is 9:7

So,  

Cross Multiplying, we get

7(7x + 10) = 9(5x + 10)

49x + 70 = 45x + 90

49x - 45x = 90 - 70

4x = 20

x = 5

Therefore,

Rahul's age = 7 × 5 = 35 years

Karan's age = 5 × 5 = 25 years

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