i have a set of digits S={ 1 , 2, 3, 4, 5 }
Now, i want to choose 3 digits from that set S such that addintion of ANY two digits > third digit
one such correct answer is , {2,3,4} because 2+3 > 4 or 3+4 >2 or 2+4 > 3
I
one such wrong answer is {1,2,3}
because It does not satisfy.... as 1+2 !>3
I dont know how do i start .
I need a process which will help me to pick up all those correct subsets ....i dont want to miss any subset.
so, should i start scanning the elements from the beginning and write in the notebook and then i'll scan again from the next element and write in notebook and then try to add and see whether this exceeds the next ? I dont think this is a good process and i am afraid that i might miss some sub-set if i try to solve this way.
how do i start ?
2007-06-01
18:09:22
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5 answers
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asked by
calculus
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Mathematics