human
The number of short students in a class is 2/5 of the total number of students. If there are 90 tall students, and the class has 400 students, calculate the total number of students with average height.
assistant
How many short students are there? ** The number of short students in the class is 2/5*400 = <<2/5*400=160>>160
How many students are there? ** The total number of short and tall students is 160+90 = <<160+90=250>>250
How many students are there with average height? ** Since there are 400 students in the class, the number of students with average height is 400-250 = <<400-250=150>>150
#### 150