The problem is this:
"A store sells cookies at 8 cookies for $2.00. If it changes the price to 10 cookies for $3.00, what is the percent increase in price per cookie?"
+130071 "A store sells cookies at 8 cookies for $2.00. If it changes the price to 10 cookies for $3.00, what is the percent increase in price per cookie?"
2.00 / 8 = .25 per cookie
3.00 /10 = .30 per cookie
Price increase is
[ 30 - 25 ] / 25 x 100% =
[ 5 ] / 25 x 100% =
1/5 x 100% =
[100 / 5] % =
20 %
