There were 35 balls in a bag, some of which were yellow and the rest were green. If the probability of picking a yellow ball is 0.2, how many yellow balls were in the bag?
There were 35 balls in a bag, some of which were yellow and the rest were green. If the probability of picking a yellow ball is 0.2, how many yellow balls were in the bag?
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therefor
hence, there were 7 yellow balls...