(iii)Now, Total number of red face cards are $6$
So, Number of favorable outcomes i.e. total number of red face cards is $6$
We know that the Probability = Number of favorable outcomes/ Total number of outcomes
Hence, the probability of getting a red face cards $=6/52=3/26$
(iv) Total number of queens of black suit cards is $2$
Total number of favorable outcomes which means. total number of queens of black suit cards is $2$
We know that the Probability = Number of favorable outcomes/ Total number of outcomes
Therefore, the probability of getting cards which is a queen of black suit $=2/52=1/26$