The ratio of weight of zinc and Copper in a mixture is in the ratio of 5 : 6. If 6 gm is taken out from zinc and 6 gm is added in copper, the ratio of zinc and copper becomes 2 : 3. Find the initial weight of zinc.
1
45 gm
2
55 gm
3
50 gm
4
60 gm
5
65 gm