Guest Posted November 28, 2009 Report Share Posted November 28, 2009 A tea factory has a certain number of packers all of whom pack 1 kilo unmarked boxes filled with tea. Each packer fills each box with exactly 1 kilo of tea. One of the packers consistently steals 10g of tea from each box he/she packs. The manager knows that the culprit is one of the packers but he doesn’t know which one. As he is trying to work out how to unmask the culprit a porter is wheeling an electronic weighing machine through the factory. The manager asks the porter if he can use the machine to help solve his dilemma. The porter replies that the machine is for another department but reluctantly agrees the use of the machine for only one weighing/reading only. Using the weighing machine once to take one reading the manager is able to unmask the culprit. How does he do it? Quote Link to comment Share on other sites More sharing options...
0 Guest Posted November 28, 2009 Report Share Posted November 28, 2009 lets say you have n tea packers place 1 package of tea from one tea packer (lets call him p1), 2 from another (p2), 3 from another (p3)..... till you take n from another (pn) calculate how much it should way with 1000n(n-1)/2 if it is 10r below what it should be it is pr who is the theif Quote Link to comment Share on other sites More sharing options...
0 Guest Posted November 28, 2009 Report Share Posted November 28, 2009 Think it s/b n(n+1) Quote Link to comment Share on other sites More sharing options...
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Guest
A tea factory has a certain number of packers all of whom pack 1 kilo
unmarked boxes filled with tea. Each packer fills each box with exactly
1 kilo of tea. One of the packers consistently steals 10g of tea from
each box he/she packs. The manager knows that the culprit is one of the
packers but he doesn’t know which one. As he is trying to work out how
to unmask the culprit a porter is wheeling an electronic weighing
machine through the factory. The manager asks the porter if he can use
the machine to help solve his dilemma. The porter replies that the
machine is for another department but reluctantly agrees the use of the
machine for only one weighing/reading only. Using the weighing machine
once to take one reading the manager is able to unmask the culprit. How
does he do it?
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