Total amount of the first prize:1700 * [6 *1(6 *1+2 * 2+1* 7)] = 600.

Total amount of the second prize:1700 * [2 * 2/(6 *1+2 * 2+1* 7)] = 400.

Total amount of the third prize:1700 * [1* 7/(6 *1+2 * 2+1* 7)] = 700.

Everyone:

First prize: 600/5 = 120

Second prize: 400/ 10 = 40

Third prize: 700/35 = 20