Total number of cards = 52 i.e.
Total number of outcomes = 52
There will be a total of 12 cards between 5 and 9
Total number of favorable outcomes = 12
The probability of picking card between 5 and 9 = 12/52 = 3/13
The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is the difference between the sum and the difference of the digits of the number if the ratio between the digits of the number is 1 : 2 ?
frank
If a man's wit be wandering, let him study the mathematics.