Question

The table shows the number of students in a class who have allergies and/or have asthma:



Have Allergies Do Not Have Allergies Total
Have Asthma 56 15 71
Do Not Have Asthma 40 ? 46
Total 96 21 117


What is the missing number in the table?
5
6
16
50

Answer 1

If I call with \(x\) the requested number, then I can write:
\(15+x=21\), and \(40+x=46\)
so, what is \(x\)?

Answer 2

B

Answer 3

that's right!

Answer 4

So the correct answer choice is B

Answer 5

yes!