document.write( "Question 1143739: A box contains 7 red cards, 2 blue cards, 3 green cards. What is the he smallest number of cards we must take from the box to make sure that we have 2 red cards?
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Algebra.Com's Answer #764620 by ikleyn(52787) $\"\"$ $\"About$

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document.write( "In the worst case, we should take all blue cards (2) and all green cards (3).\r\n" );
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document.write( "    2 + 3 = 5.\r\n" );
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document.write( "After taking the 6-th card we inevitably will have at least one red card,\r\n" );
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document.write( "and after taking the 7-th card we inevitably will have at least two red cards.\r\n" );
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document.write( "ANSWER.  After taking 7 (seven) cards we inevitably will have at least two red cards.\r\n" );
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