Question 5
There are 5 pieces of red socks, 9 pieces of white socks and 13 pieces of blue socks in a
box. Any two pieces with the same colour can make a pair of socks. If you want to draw
2 pairs of socks, at least how many pieces of socks should be drawn randomly?
box. Any two pieces with the same colour can make a pair of socks. If you want to draw
2 pairs of socks, at least how many pieces of socks should be drawn randomly?