A survey of $120$ teachers determined the following: $70$ had high blood pressure $40$ had heart trouble $20$ had both high blood pressure and heart trouble What percent of the teachers surveyed had neither high blood pressure nor heart trouble?

Leafie Jan 19, 2021

#1**+1 **

70+40=110 students with either condition

110-20 (because there are 20 repeats)=90 teachers with a condition

120-90=30 without conditions

30/120=25%

MooMooooMooM Jan 19, 2021