A bag contains 5 red balls, 3 blue balls and 2 green balls. If a ball is picked at random from the bag, what is the probability that it is blue?
A1/5
B3/10CORRECT
C2/5
D7/10
GCEMathematicsProbability2023
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Why the answer is B, and why the others tempt you.
The total number of balls in the bag is 5 + 3 + 2 = 10. The number of blue balls is 3. Therefore, the probability of picking a blue ball is 3/10.
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