一道 GWD数学

weiwei_zhwq · 发表于 2009-7-4 11:11:00

How many integers from 0 to 50, inclusive, have a remainder of 1 when divided by 3 ?

A. 15

B. 16

C. 17

D. 18

E . 19

我从4开始算起的, 选了B, 难道1/3也余1吗?

royalex · 发表于 2009-7-4 11:26:00

Prep上说的：

Also note that when a smaller integer is divided by a larger integer, the
quotient is 0 and the remainder is the smaller integer. For example, 5 divided
by 7 has the quotient 0 and the remainder 5 since

5 = (7)(0) + 5.

alan722 · 发表于 2009-7-4 13:16:00

1除以3商0余1

weiwei_zhwq · 发表于 2009-7-4 17:57:00

谢谢两位GG

INCHASEDREAM · 发表于 2009-7-7 14:25:00

多背一条！！

一道 GWD数学

一道 GWD数学

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