Question

0 there are 6o students in a maths class and
90 students are in physics class. find the no. of student
which will either in physics or maths in the
following cases -
Two classes meet at same hours.
two classes meet on difference hour and 30 students
are involved in bo the of the courses.​

Answer 1

90+60 =150

150/30=5

5 students are involved in both the subjects