A bag contains 375 currency notes consisting of 5-rupee, 10-rupee and 50-rupee currencies in the ratio 4 : 8 : 3 respectively. Out of this, amount Rs. 50 is spent and the left out money is exchanged for 100-rupee currency notes. Then the number of 100-rupee currency notes is
1
150
2
62
3
72
4
52