Question 5
There are 4 pieces of white chopsticks, 5 pieces of yellow chopsticks and 6 pieces of blue
chopsticks mixed together. If you want to get 2 pairs of chopsticks with the same colour
in the dark, at least how many pieces of chopsticks should be taken?
chopsticks mixed together. If you want to get 2 pairs of chopsticks with the same colour
in the dark, at least how many pieces of chopsticks should be taken?