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2. A packet contains 100 washers, 24 of which are brass, 36 copper and the remainder steel. One washer is taken at random without

2. A packet contains 100 washers, 24 of which are brass, 36 copper and the remainder steel. One washer is taken at random without replacement, and a second washer similarly drawn. Determine the probability that: a. Both washers are steel b. The first is brass and the second copper C. One is brass and one is steel (6)

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