if 64 cookies are in a jar 37.5% are different

Question

how many cookie are different?

Answer 1

Use proportions and think logically.

 

If 64 cookies = 100%

then x cookies = 37.5 %

 

So 64/x = 100/37.5

 

Now cross multiply them to find x (aka # cookies that are different):

X x 100 = 64 x 37.5

100x=2400

x=24