困惑的一道数学题

idsamsang

In a certain deck ofcards, each card has a positive integer written on it. In a multiplication game, a child draws acard and multiplies the integer on the card by the next larger integer. If each possible product is between 15 and200, then the least and greatest integers on the cards could be

3 and 15

3 and 20

4 and 13

4 and 14

5 and 14

答案选择C， 为什么不是14呢， 14为最大的数， 13*14=182，不是刚刚好吗？

光芒万丈小侠女

因为小孩子抽中最大的数13，再用13乘以14啊。题主是没理解清楚题意，孩子只抽取一次，乘以比他抽取的卡片上数字大一的数字。乘的那个较大的数字，不一定在卡片上