请大家帮看到题

alvin

24. 运动员参加一运动会，每人得相同数量饮料，饮料同取于80drinks，最后剩余4个drinks
问选项中不可能是运动员数量的是：12，14，21，42，48。

这道题没有看明白,请大家给解释一下是什么意思,谢谢![em24]

lilya

这不是anniemoon的那道考题吗？
你是在哪本书里看到的？

alvin

it is a JJ in this website,I just can't figure it out what it is talking about,anyone can give me hand on it?

mingja

It is asking :

If X is the number of atheletes and 80= X C +4 where C is >0

Which of the  followings cannot be the value of X?

12，14，21，42，48

From what I calculate, all of them cannot be the value of X.


Only 80=19*4+4

In other words

what are the factors of 76

which are 1,2,4,19,38

春来草自香

题目有错吧？做法按mongja说的没有错，其实就是求一个数的因子。