The ratio of the age of Ram and Laxman is 3 : 4, the ratio of the age of Laxman and Shyam is 12 : 5 and the ratio of the age of Shyam and Vishnu is 5 : 13, if the difference in the age of Ram and Vishnu is 20 years, then find the age of Laxman 10 years ago.
1
50 years
2
60 years
3
40 years
4
None of the above
5
Question Not Attempted