Respuesta :
9+12+15=36
36 students are there because the question says 5 students participate in exactly 2 out of 3 activities
which is = 36-5=31
and the rest participate in only 1 activity = 31 participate in 1 activity
therefore total 36 students were there in the homeroom
hope it helps!!
36 students are there because the question says 5 students participate in exactly 2 out of 3 activities
which is = 36-5=31
and the rest participate in only 1 activity = 31 participate in 1 activity
therefore total 36 students were there in the homeroom
hope it helps!!