If Whitmey wrote the decimal representations for the first 300 positive integer multiples of 5 and did not write any other numbers, how many times would she have written the digit 5?
150
185
186
200
201
登录 或 注册 后可以参加讨论
我还以为是写了前三百个正整数中是5倍数的数字。。。
我还以为是写了前三百个正整数中是5倍数的数字。。。
登录 或 注册 后可以参加讨论