There are 34 students in anatomy class and 37 students in physics class. If there are 48 students in total, how many students are in both classes?

Answer: 23

Step-by-step explanation:

let x=no. of students in both classes

no. of students in anatomy = 34

no. of students in anatomy only = 34 - x

no. of students in physics = 37

no. of students in physics only=37-x

48 = 34-x + 37-x + x

48 = 34 - x + 37

48 = 71 - x

x = 71 - 48

x = 23

Therefore the number of students in both classes are 23