Question

The National Association for Women in Science asked recent high school grads if they had taken certain science classes. Of those surveyed, 51 said they had taken physics, 142 said they had taken chemistry and 32 said they had taken both. Twenty-five said they had taken neither. How many recent high school grads were surveyed? Show your work.

Answer 1

subtract 32 from 142 and 51 then add them up along with 25 to get 154

Answer 2

maybenot

Answer 3

add 32 to 154 also to get 186

Answer 4

so 110 took physic, 19 took chem, 32 took both, and 25 took neither