标题:
GMAT Mahattan 上一题
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作者:
je04tta
时间:
2013-4-8 13:51
标题:
GMAT Mahattan 上一题
1 How many three-digit numbers begin with a digit which represents an odd number that is a prime, have a prime number as a second digit, and end with a digit that represents an odd number?
A A15
B B60
C C75
D D80
E E100
作者:
henguc
时间:
2013-4-8 20:46
我觉得是B,
10以内的Prime number有2, 3, 5, 7, 奇数有1, 3, 5, 7, 9
百位有3种可能,十位有4种可能,个位有5种可能,所以结果应该是3*4*5=60.
作者:
je04tta
时间:
2013-4-9 21:02
感谢 不好意思忘记附答案了 答案就是B
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