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What will be the possibility of drawing a jack or a spade from a well shuffled standard deck of 52 playing cards?
Answer & Solution
Correct Answer:
Option
A
We want jack or spade
There are 4 jacks and 13 spade cards
Total 52 cards
Also 1 jack is jack of spades
So probability
$$\eqalign{ & = \frac{4}{{52}} + \frac{{13}}{{52}} - \frac{1}{{52}} \cr & = \frac{4}{{13}} \cr} $$
There are 4 jacks and 13 spade cards
Total 52 cards
Also 1 jack is jack of spades
So probability
$$\eqalign{ & = \frac{4}{{52}} + \frac{{13}}{{52}} - \frac{1}{{52}} \cr & = \frac{4}{{13}} \cr} $$
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