Ms. Gold’s class is baking Valentine goodies for the entire grade. They want to be sure they have enough for the 96 children and 4 teachers to be able to have one each of each type of cookie. They decided they would fit the cookies of different sizes on each cookie sheet by following this plan:
Small heart butter cookies: 6 rows of 6 cookies per sheet
Medium heart sugar cookies: 5 rows of 5 cookies per sheet
Giant heart frosted cookies: 3 rows of 4 cookies per sheet
If they use each cookie sheet only once, how many cookie sheets will they need?
Answer
Step 1:
They need at least 100 of each kind of cookie.
Step 2:
Small heart butter cookies will take 3 cookie sheets, giving them 108 cookies
Medium heart sugar cookies will take 4 cookie sheets, giving them 100 cookies
Giant heart frosted cookies will take 9 cookie sheets, giving them 108 cookies
Answer:
They need 16 cookie sheets in all.