Below is an instruction that describes a task. Write a response that appropriately completes the request in English. Please answer in English.

### Instruction:
Texas Integrated School has 15 classes and has 20 students per class.  They added five more classes, how many students will they have now?

### Response:
Since Texas Integrated School has 15 classes and has 20 students per class, they have a total of 15*20=<<15*20=300>>300 students.
They added five more classes, totaling 15+5=<<15+5=20>>20 classes.
Since each class has 20 students, the total number of students in the 20 classes is 20*20= <<20*20=400>>400 students.
#### 400