There are several first, second and third prizes in the "June 1" talent show. The first and second prizes account for 12% of the total number of winners. The second and third prizes account for 45% of the total number of winners. What percentage of the first, second and third prizes account for?

There are several first, second and third prizes in the "June 1" talent show. The first and second prizes account for 12% of the total number of winners. The second and third prizes account for 45% of the total number of winners. What percentage of the first, second and third prizes account for?

The proportion of the first prize: 1-45 = 15, the second prize: 12-15 = 310, the third prize: 1-12 = 12, a: the first prize, the second prize and the third prize each account for 15310, 12