In a certain deck opf cards, each card has a positive integer written on it. In a multiplication game, a child draws a card and miltiplies the integer on the card by the next larger integer. If each possible product ois between 15 and 200, then the least and greatest integers on the cards could be?
1.) 3 and 15 2.) 3 and 20 3.) 4 and 13 4.) 4 and 14 5.) 5 and 14
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发表于 2011-4-10 22:42:07
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