Question

15 years from now Ravi's age will be 4 times his parents age. What is Ravi's present age?

Answer 1

hi!!!

ravi's present age = r

ravi's age 15 years later = r + 15 = 4r

so 15 = 4r - r  

    15 = 3r

15/3 = r

5 =r

so ravi's present age = 5  

ravi's present  age + 15 =20

20 = 4r  

   = 5 x 4

Answer 2

I don't understand bro