Question

the present ratio of ramesh and suresh is 5:7 after 4years the sum of their age become 56 what is thier present age

Answer 1

present age

ramesh-x

suresh-y

x:y=5:7

7x=5y

x=5y/7

after 4 years

ramesh-x+4

suresh-y+4

sum of their ages = 56

x+y+8=56

x+y=48

5y/7 + y = 48

12y/7 = 48

y= 48*7/12= 28

x+28=48

x=20

y=28