Question

A man has 53 socks in his drawer: 21 identical blue, 15 identical black ,and 17 identical red. The lights are fused and he is completely in the dark. How many socks must he take out to make 100 percent he has a pair of bllack socks?A. 30B. 35C. 45D. 40

Answer 1

53 socks : 21 identical blue, 15 identical black and 17 identical red

How many socks must he take out to make 100 percent he has a pair of bllack socks?

He must take the following number of socks out of the drawer:

$21+17+2=40$

21 -> blue socks

17 -> red sock

2 -> black socks

For a total of 40