if the bowl contains 5 red marbles 7 blue marbles and 8 white marbles what is the probability you will draw a red or blue marble?
5/20
15/20**
7/20
3/5
2/5??
I mean 3/5
Yes, 3/5
No.
There are only 12 red or blue marbles.
Well, let me think about it. Drawing a red or blue marble means getting either a red marble, which there are 5 of, or a blue marble, which there are 7 of. So, in total, there are 5 + 7 = 12 marbles that are either red or blue.
Since there are a total of 5 red marbles, 7 blue marbles, and 8 white marbles, the probability of drawing a red or blue marble would be (5 + 7) / (5 + 7 + 8) = 12 / 20 = 3/5, or as a decimal, 0.6.
So, the answer is 3/5 or 0.6.
To calculate the probability of drawing a red or blue marble, we need to find the total number of red and blue marbles and divide it by the total number of marbles in the bowl.
According to the given information, there are 5 red marbles and 7 blue marbles in the bowl.
The total number of red and blue marbles is 5 + 7 = 12.
The total number of marbles in the bowl is given as 5 (red) + 7 (blue) + 8 (white) = 20.
Therefore, the probability of drawing a red or blue marble is 12/20, which simplifies to 3/5.
So, the correct answer is 3/5.