Answer:

the answer would be 5 years because biru is much smaller than sudhir

Verified answer

Answer:

here is the answer

let Viru's present age = x

sudhir's age = 3x+5

anil' s age = 3x+5/2

now, we are given

4x+5 : 3(3x+5/2) = 5:6

4x+5/[ 3(3x+5/2)] =5/6

2(4x+5 ) / 3(3x+5) =5/6

8x+10/ 9x+15 =5/6

6(8x+10)=5(9x+15)

48x+60=45x+75

3x = 15

x=5

so, viru's age =5yrs.