10. A and B are in a line to purchase tickets. How many people are in the line?
1). There are 15 people behind A and 15 people in front of B
2). There are 5 people between A and B
我觉得应该是E
根据题目,如果A在B前面的话,那么总人数就是25人;如果B在A前面的话,总人数就是25人。
所以由于A,B位置的不确定,所以总人数就无法确定,是这样,吗???
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13、If m and n are positive integers, is m/n a terminal decimal?
1). 90<m<100
2). n=4
答案是什么啊 B 还是 C 啊==>答案一定是B
4. Is the positive integer x an even nuber?
1). If x is divided by 3, the remainder is 2
2). If x is divided by 5, the remainder is 3
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我的答案是A,因为
1)已经决定了x是Odd,所以已经解决了x不是even的问题。
2)不确定,可even可odd.
所以答案是A
好帖子,别沉了!
4题答案是E,对吗?
(1)肯定不对
(2)肯定不对
(1)+(2):个位可能是8,3。所以,也不能确定
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