Question

There are 35 student in music class and 57 student in dance class.find the number of student who are either music or dance.1)when two classes meet different hour and 12 student enrolled in both class.2)when two class meet at same hour.

Answer 1

Answer:

no. of students in art class =35

no. of students in dance class =57

no. of students in all=35+57

35

+57

= 82

then no. of students were out =

12

Now do it (82-12=?)

82

- 12

=70

and is=70