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:

Let the common ration between Rahul's age and Haroon's age be x.

Therefore, age of Rahul and Haroon will be 5x and 7x years respectively.

After 4 years, their ages will be (5x+4) and (7x+4) rexpectively.

According to the given condition, we have

5x+4+7x+4=56

⇒12x+8=56

⇒x=4

Therefore, present age of rahul is 5x=5×4=20 years and present age of Haroon is 7x=7×4=28 years.

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

let rohit age =5x

let hema age =7x

5x-4/7x-4=3/4

then we wil do cross multiplication

4(5x-4)=3(7x-4)

20x-16=21x-12

20x-21x= -12+16

-x= +4

present age of rohit=5×4=20 years

present age of hema =7×4=28 years