The respective ratio between the present age of Ram and Shyam is 4 ∶ x. Ram is 4 years younger than Hari. Hari’s age after 10 years will be 30 years. The difference between Shyam’s and Ram’s age is same as the present age of Hari. What is the value of x?
1
12
2
7
3
5
4
9
5
11