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Numerical Ability
Probability
A person picks up 2 balls from a bag containing 10 blue and 15 red balls. What is the probability that the person picks the 2 balls of different colors? 1) 1/2 2) 2/3 3) 3/4 4) 1/5 5) 1/8
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- P(R&B) = [(10C1)*(15C1)]/25C2 = 1/2
- 4 years agoHelpfull: Yes(1) No(0)
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