Question

The present age of Pratik and Arjun are the ratio 2:3. 4 years from now, the ratio of their ages will be 4:5.The present age of Pratik is _______ years

Answer 1

let x be the age of Pratik and Y be the age of Arjun therefore the the ratio of their ages is x/y=2/3 3x-2y=0 x+4/y+4=4/5 5x+20=4y+16 5x-4y=-4 6x-4y=0 -5x-4y=-4 x=4 y=6 therefore present age of Pratik is equal to 4 and Arjun is equal to 6