Question

A box contains six red playing cards numbered one to six and also six black playing cards one to six. What is the probability of picking a card that is black or has an even number?

Answer 1

In total, we have 12 playing cards

number of cards that are black or have an even number = 6+3=9

Therefore for the probability, we have

$P(\text{black or even)=}\frac{9}{12}=\frac{3}{4}$

ANSWER

The probability is 3/4