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Willys Mistake

Willys Mistake

Posers and Puzzles

b

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10 Jun 05
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The set (1,2,3,4) can be partioned into two subsets (1,4) and (2,3) of the same size. 1+4=2+3
a)find the next whole number n, above 4, for which the set (1,2,...n) can be paritioned into two subsets S and T of the same size, with the sum of S and T the same.

b)find all partition in a) with the additional property that the sum of the squares of the numbers in S equals the sum of the squares of the numbers in T.

Terri says she can partition the set (1,2...16) into subsets S and T of the same size so that:
- the sum of the numbers in S equals the sum of T
-the sum of the squares of the number in S equals the sum of the squares of the numbers in T.
-the sum of the cubes of the numbers in S equals the sum of the cubes of the numbers in T.

c) show terri is right.

Willy says she can partition the set (1,2...8) into subsets S and T, not necessarily the same size so that:
- the sum of the numbers in S equals the sum of T
-the sum of the squares of the number in S equals the sum of the squares of the numbers in T.
-the sum of the cubes of the numbers in S equals the sum of the cubes of the numbers in T.

d)show why you dont belive willy

d

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this has already been done. twice

b

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11 Jun 05
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yeh but only a has been done da rest hasnt been done

d

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fine.

b) 8,5,3,2 and 7,6,4,1

b

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13 Jun 05
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common PEOPLE PLEASE IM STUCK ON C AND D

b

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thanks do u know how to do c) and d) coz im stuck please help 😀

d

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c) just find a partition that works
d) just test all and see...

i know these are lame answers, but i forgot to copy my solutions before i sent them in...

b

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plzzzzzzzzzzzzzzzzzzzzzzzzzzz i need it plz man comon

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