A glass jar contains 6 red, 5 green, 4 blue and 5 yellow marbles of same size. Hari takes out a marble from the jar at random. What is the probability that the chosen marble is of red colour?
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Answer:
probability =( number of options/number of options)×100
number of options = red balls = 6
number of options = total balls = 20
= (6/20)×100
= 30%
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