Homework Help: math

Posted by KeKe on Wednesday, October 17, 2012 at 8:35pm.

If you have black socks and brown socks in your drawer mixed in a ratio of 4 to 5, how many socks will you have to take out to make sure that you have a pair the same color?

math - Steve, Wednesday, October 17, 2012 at 11:21pm
assuming you have full pairs, then the minimum number of socks is 8+10 = 18.

So, you need to take out 9 socks to be sure there is at least one of each color.

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