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A bowl contains 20 marbles(8 blue, 6 red, 3 green, 2 yellow, and 1 orange). If you reach in and choose one marble at random, wha
A bowl contains 20 marbles(8 blue, 6 red, 3 green, 2 yellow, and 1 orange). If you reach in and choose one marble at random, wha
admin
2013-02-19
78
问题
A bowl contains 20 marbles(8 blue, 6 red, 3 green, 2 yellow, and 1 orange). If you reach in and choose one marble at random, what is the probability that it will be red?
选项
答案
3/10
解析
There is a total of 20 marbles in the bowl, 6 of which are red. If one marble is selected at random, the probability that it will be red is
This can be reduced to 3/10.
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