A, B, C STARTED A BUSINESS WITH THEIR INVESTMENT IN THE RATIO 1

12. A, B, C started a business with their investment in the ratio 1 : 3 : 5. After 4 months, A invested the same amount as before and B as well as C withdrew half of their investments. The ratio of their profits at the end of the year was: (1) 5 : 6 : 10 (2) 6 : 5 :10 (3) 10 : 5 : 6 (4) 4 : 3 : 5