If there are 65,438+0,000 people in this school, there will be 500 skaters, then there will be 550 men, 450 women, and men who can skate =0.7 times 550=385, then 500-385 = 65,438+065,438+05 can skate.

[(450- 1 15)/ 1000]* 100%=33.5%