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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Comments
pretty good teaser
watever!!!
This could go in the math, too!
Pretty Easy. Maybe you should have thrown in another variable such as the kids are eating the cookies at the rate of 20 per hour and you have so many hours to make them in. The oven only holds so many sheets.
I HATE MATH!!!!
say wha??
I didn't read correctly
I agree, this could have gone into math, too. Easy but good.
This has nothing to do with logic. it is stirctly math. Put this in the math section.
So where's the riddle?
I agree, this is more math than logic. But a very nice teaser. Good Job and well written
they coulda saved sheets by combining types for the partial sheets they needed to complete the 100 per type. Actually though, I suspect this is a public school wasting my tax dollars by throwing away good cookie sheets after they've only been used once!
Yeah, where's the teaser? Super simple math does not a teaser make.
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