Mathematics

Mathematics

Problem

A bag contains 4 red, 3 green and 2 blue balls. Two balls are drawn one after another without replacement. What is the probability that the two balls are of different colours? a) 5281\dfrac{52}{81} b) 1318\dfrac{13}{18} c) 518\dfrac{5}{18} d) 34\dfrac{3}{4}

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