题目

Kyle’s lock combination consists of 3 two-digit numbers.The combination satisfies the three conditions below.
 One number is odd.
 One number is a multiple of 5.
 One number is the day of the month of Klye’s birthday.
If each number satisfies exactly one of three conditions ,which of the following could be the combination to the lock?
A 14-20-13
B 14-25-13
C 15-18-16
D 20-15-20
E 34-30-21
这题也没说Kyle的生日啊,答案为什么选A?

提问时间：2020-11-21

答案

条件1,有一个是奇数.条件2,有一个是5的倍数.条件3,有一个是K的生日日期,那就只能是1-31了.(A) 14-20-13(B) 14-25-13 --> 被排除因为有2个奇数(C) 15-18-16 --> 被排除因为15是唯一一个奇数同时又是5的倍数(D) 20-15-...