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27 Weights (Posted on 2003-05-31) Difficulty: 3 of 5
Suppose you have 27 weights weighing: 1, 2, 3, 4, ........, 25, 26 and 27 grams respectively.

(a)How can you group them into three groups so that each group has the same weight ?

(b) Is it possible to divide it into more than three groups satisfying the same conditions ?

See The Solution Submitted by Ravi Raja    
Rating: 3.5000 (2 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re: very easy | Comment 11 of 14 |
(In reply to very easy by brandy durbin)

The weights were the squares of the integers from 1 to 27, not those integers directly. While your non-squared groups each add up to 126, when the integers are squared the squares within groups add up to 3136, 2299 and 1414 respectively.
  Posted by Charlie on 2003-05-31 15:49:05

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