Brain Teasers
Cookie Sheets
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 different size cookies 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?
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.
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