Rows of Cans of Tuna
Date: 8/26/96 at 20:46:20 From: Anonymous Subject: Rows of Tuna Cans of tuna are arranged in a display that has 4 rows. Each row has one more can than the row in front of it. If the last row has 10 cans, how many cans are in the display? I got an answer of 34, but some people disagree with me!
Date: 8/27/96 at 2:38:22 From: Doctor Mike Subject: Re: Rows of Tuna Hello, I can see how you got 34 cans total. The only way I could see anybody disagreeing with you is that the meaning of "last row" might not be clear. Is the last row the one that has the most cans, or is the last row the one that has the least? Depending on your answer to that question the total is either 10 cans + 9 cans + 8 cans + 7 cans = 34 cans or 10 cans + 11 cans + 12 cans + 13 cans = 46 cans. It is not that anybody is wrong here. We just need to make sure we all understand the problem. Write us back if you have any more questions. -Doctor Mike, The Math Forum Check out our web site! http://mathforum.org/dr.math/
Search the Dr. Math Library:
Ask Dr. MathTM
© 1994- The Math Forum at NCTM. All rights reserved.