The National Association for Women in Science asked recent high school grads if they had taken certain science classes. Of those surveyed, 32 said they had taken physics, 51 said they had taken chemistry and 15 said they had taken both. Ten said they had taken neither. How many recent high school grads were surveyed? Show your work.

Question

anonymous · Answer

(32+51) - 15 = A
A + 10 = final ans

a_clan · Answer

78

anonymous · Answer

# taken one + # taken the other - # taken both = # who took any

Total = # who took any + #number who didn't take any

anonymous · Answer

Could probably use some parens there..

anonymous · Answer

Total = (# who took any) + (# who didn't take any)

(# who took any) = (# taken one) + (# taken the other) - (# taken both)