Question

The ages of anu and raj are in the ratio 5:7 four years from now the ratio of their ages will be 3:4. find their present ages.​

Answer 1

Answer:

age of anu=20

age of raj=28

Step-by-step explanation:

Let anu's age be 5x

      raj's age be 7x

After 4 years

Age of anu =5x+4

Age of raj=7x+4

A.T.Q

ratio=3:4

5x+4/7x+4=3/4

on cross multiplying

20x+16=21x+12

x=16-12

x=4

So age of anu=5x=5*4=20

age of raj=7x=7*4=28

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Answer 2

Step-by-step explanation:

let the ages of anu and Raj be 5x&7x.

four years ago the age = 5x-4/7x-4=3x/4x

=20x+16=21x+12

=20x-21x = -16+12

= -x= -4

=4

so, their Present ages

anu's age= 5×4=20

Raj's age = 7×4=28