Question

James bought 12 cookies and ate 3 of them. He ate ____% of the cookies.
THE RIGHT ANSWER GETS A MEDAL AND I WILL BECOME A FAN!!!!!!!!!!!!!!!!!!!!

Answer 1

Since 12 cookies equals 100% of the cookies. The part is 3 cookies. So set up a proportion to solve.

\[\frac{ part }{ whole }= \frac{ ? }{ 100 }\]

\[\frac{ 3 }{12 }=\frac{ ? }{ 100 }\]

To solve, cross multiply (3*100) and divide by 12.

3*100=300

300 divided by 12 = 25

So he ate 25% of the cookies.