Question 5
There are 3 pieces of white chopsticks, 4 pieces of yellow chopsticks and 5 pieces of
brown chopsticks mixed together. If you want to get 2 pairs of chopsticks with different
colours in the dark, at least how many pieces of chopsticks should be taken out?
brown chopsticks mixed together. If you want to get 2 pairs of chopsticks with different
colours in the dark, at least how many pieces of chopsticks should be taken out?