Question

Sachin is younger than Rahul by 4 years. If their ages in the ratio 7:9, Sachin's age is​

Answer 1

Answer:

Let Sachin's age be x years.

So,Rahul's age=(x+4) years.

Given: x/(x+4)= 7/9

=>9x=7(x+4) =>9x=7x+28 =>2x=28 => x=14

Hence Sachin's age=14 years

Answer 2

Step-by-step explanation:

Given :-

Sachin is younger than Rahul by 4 years. If their ages in the ratio 7:9

To find :-

Find Sachin's age?

Solution :-

Let the age of Sachin be X years

Then the age of Rahul = (X+4) years

The ratio of their ages = X:(X+4)

Given that

The ratio of the ages of Sachin to Rahul = 7:9

=> X:(X+4) = 7:9

=> X/(X+4) = 7/9

=>9X = 7(X+4)

=> 9X=7X+28

=> 9X-7X = 28

=> 2X = 28

=> X = 28/2

=> X = 14 years

Answer:-

The present age of Sachin = 14 years

Check :-

sachin's age = 14 years

Rahul's age = 14+4 = 18

Their ratio = 14:18=7:9

Verified the given relations in the given problem