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Number Theory

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Number Theory

by raunakrajan » Wed Jun 16, 2010 10:41 pm
What is the least possible product of 4 different integers, each of which has a value between -5 and 10 inclusive?

(A) -5040
(B) -3600
(C) -720
(D) -600
(E) -120
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by amising6 » Wed Jun 16, 2010 10:45 pm
we will give least product by taking one smallest negative number and 3 large positive number
so we will take -5,10,9,8
so product=-3600
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by kvcpk » Thu Jun 17, 2010 1:19 am
max negative * max positive = max negative

so -5 * 10 * 9 * 8 bcos numbers shud be different..

therefore -3600
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