Cards numbered 1 to 20 are mixed up and then a card is drawn at random. What is the probability that the card has a number which is a multiple of 2 or 5?
1
1/5
2
2/5
3
3/5
4
1
5
4/5
Cards numbered 1 to 20 are mixed up and then a card is drawn at random. What is the probability that the card has a number which is a multiple of 2 or 5?