Question
A jar contains 3 red marbles, 7 green marbles and 10 white marbles. If a marble is drawn from the jar at random
A jar contains 3 red marbles, 7 green marbles and 10 white marbles. If a marble is drawn from the jar at random, what is the probability that this marble is white?
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Koala Tutor
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To find the probability of drawing a white marble, we need to divide the number of white marbles by the total number of marbles in the jar.
Total number of marbles = 3 red + 7 green + 10 white = 20 marbles
Number of white marbles = 10
Probability of drawing a white marble = Number of white marbles / Total number of marbles = 10/20 = 0.5
Therefore, the probability of drawing a white marble from the jar is 0.5 or 50%.
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