That is, there are 60 students in the science and technology group.

2. Solution: 10( 1-95%)= 200 (tree)

Plant 200 trees in one tree.

3. Solution:114 ÷ 95% =120 (person)

A: There are *** 120 students in the fifth grade.

4. Fill in two spaces in the top line:150,600. Fill in the following line from beginning to end: 20%, 15%, 10%, 25%, 100%.

This is an open question, so you can work it out by yourself. (For example, a group of 20 people, each doing 10 math problems. A * * * do 180, the correct rate is 90%. )