Math challenge!
a class adviser surveys 35 students on the kind of pets they have at home.he found that 15 have dogs,12 have cats,and 8 have mice.five have dogs and cats,4 have dogs and mice,and 2 have cats and mice.if no one has all three kinds of pets,how many student have none of these pets?

2

Answers

2016-07-06T23:22:29+08:00
There are 9 students that have no pets like mice,dogs and cats
0
2016-07-06T23:22:31+08:00
11 students have none of these pets
0