Question

Three cards are drawn from an ordinary desk and not replaced

find probability a.getting 3 jackets​
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Answer 1

Assuming you meant three jacks:

1 in 5525 or else 1/5525.

Explanation:

You start with a full deck of 52 and 4 jacks. After each draw, you reduce both the jacks and total deck by one. Your first draw would be 4/52. The next would be 3/51. The final draw would be 2/50. You multiply each fraction together as you need all of them to happen, and that is your odds of drawing 3 jacks in a row without replacement.