There are 4 queens in a standard deck of 52 cards. you pick one card at random. what is the probablity of not picking a queen?

48/5224/2612/13So the probability of not choosing a queen is 12/13                                                                                                              

Find the number of cards that are not queens by subtracting 4 from 52, which equals 48. So 48 cards out of 52 cards are not queens. This can be written as 48/52. Simplify this fraction. (48/4 / 52/4) = 12/13. The probability of not picking a queen is 12/13. Another, simpler, way to solve it is this: if you know there are 13 suites in a deck of cards, excluding one suite, in this case queens, will give you 12 out of 13 suites left that are not that suite.

The answer is 225 miles per 4.5 hours. hope this ; )