Question 1135015: Anna, Berta, Charlie, David and Elisa were baking cookies during the weekend. Over the
whole weekend Anna made 24 cookies, Berta 25, Charlie 26, David 27 and Elisa 28. After
the whole weekend one of them had twice as many cookies as after Saturday, one 3 times,
one 4 times, one 5 times and one 6 times as many. Who baked the most cookies on
Saturday?
Answer by greenestamps(13215)   (Show Source):
You can put this solution on YOUR website!
Charlie.
He baked 26 cookies on the weekend; and that total was either 2, 3, 4, 5, or 6 times as many as he baked on Saturday alone. But 26 is not multiple of 3, 4, 5, or 6, so his 26 cookies total must be 2 times what he baked on Saturday; therefore, he baked 13 cookies on Saturday.
The total numbers of cookies baked by the others have to be at least 3 times what they baked on Saturday; and since the largest total baked by any of the five people was 28, all the other numbers of cookies baked on Saturday alone will be far less than 13.
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