A bag contains 6 white marbles and 4 black marbles. A marble is drawn from the bag and then a second marble is drawn without rep
lacing the first one.
What is the probability of drawing a white marble on the first draw, followed by a black marble on the second?
What is the probability of drawing a white marble on the first draw, followed by a black marble on the second?
1 answer:
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Answer:
actually its A... i know cause i got it WRONG
Step-by-step explanation:
There are 270 pages in this book.
Given that,
Emily reads a storybook the first day,
She reads 1/9 of the whole book, and on the second day, she reads 24 pages.
The ratio of the number of pages read to the remaining pages in the two days is 1:4.
We have to find
How many pages are there in this book?
According to the question,
Let, P is the number of pages,
The first day Emily reads p/9 pages of the whole book,
And the second day she read 24 pages.
The ratio of the number of pages read to the remaining pages in the two days = 1;4 = p/5.
Therefore,
The number of pages reads first day + the number of pages read the second day = The ratio of the number of pages read to the remaining pages in the two days
Hence, there are 270 pages in this book.
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