题目

One day Bob took two of his friends into the mountains. They put up their tents and then rode off to a forest to see how the trees were growing. In the afternoon when they were about ten kilometers from their camp, it started to snow. More and more snow fell. Soon Bob could hardly see his hands before his face. He could not find the road. Bob knew there were two roads. One road went to the camp, and the other went to his house. But all was the white snow. Everything was the same. How could he take his friends back to the camp? Bob had an idea. The horses! Let the horses take them back!六（5）班规定每人参加一项兴趣小组活动．学生参加兴趣小组情况如图．（1）参加绘画组的学生人数占全班人数的______%．（2）如果全班有60人，那么参加合唱队的有______人．