Probability helps us to know the chances of an event occurring. There are 8 different scenarios possible.
<h3>What is Probability?</h3>
Probability helps us to know the chances of an event occurring.

For the given word SANDWICH, there are 8 different scenarios possible, which can be represented as shown below.
Hence, there are 8 different scenarios possible.
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Okay first you need to convert 0.2 to a percentage which would be 20% then 20% + 20% = 40% then it says he read 50%, 50% of 36 means that you have to multiply 36 two times to get, 72 then you do 72 * 40% = 28.8 = 29 + 72 = 101 pages in all then 101- 40%= 60.6 is how many pages were read on Monday and Tuesday.
I believe the answer is the first option. Tell me if i'm wrong. :)
13, because 78 postcards divided by 6 cards per board = 13 poster boards