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36.4841-!-item-!-187;#058&004235
In a certain deck of cards, each card has a positive integer written on it.In a multiplication game, a child draws a card and multiplies the integer on the card by the next larger integer.If each possible product is between 15 and 200, then the least and greatest integers on the cards could be
(A) 3 and 15
(B) 3 and 20
(C) 4 and 13
(D) 4 and 14
(E) 5 and 14
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【答案】C
【思路】
题意应该是抽一张牌就要乘上这张牌和其下一个号码
所以3x(3+1)=12. 4x(4+1)=20, 13x(13+1)=182, 14x(14+1)=210. 应该是4与13没错
做的时候我的答案是3和25。。。题目中并没有说是连续整数啊!!!!求解答,,题干中哪个词告诉我是连续整数啦!!!!
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