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Err0r · 02-07-2007

A friend presented me with an extremely hard logic question which has been bugging me the entire day. Someone please solve it!

3 guys need to buy bread, they pay 1 dollar each.
In total there is now 3 dollars, and a fourth guy (hasn't paid) goes out to buy it.
The bread only costs $2.5, meaning 50 cents are spare. The fourth guy decides 50 cents can't be split between 3, so he decides to keep 20 cents and pays back each of the three other guys 10 cents.
The 3 guys have now actually paid 90 cents each. So, 3x90 = 270 cents. 270 + 20(what the fourth guy kept) = 290.
Where has 10 cents disappeared?

02-07-2007	#1 (permalink)
Err0r Administrator Join Date: Nov 2006 Location: Stockholm Posts: 1,461	Impossible Logic Question A friend presented me with an extremely hard logic question which has been bugging me the entire day. Someone please solve it! 3 guys need to buy bread, they pay 1 dollar each. In total there is now 3 dollars, and a fourth guy (hasn't paid) goes out to buy it. The bread only costs $2.5, meaning 50 cents are spare. The fourth guy decides 50 cents can't be split between 3, so he decides to keep 20 cents and pays back each of the three other guys 10 cents. The 3 guys have now actually paid 90 cents each. So, 3x90 = 270 cents. 270 + 20(what the fourth guy kept) = 290. Where has 10 cents disappeared? __________________ Changes are happening.