(i) In a company, 15% of the employees are graduates and 85% of the employees are non-graduates. As per the annual report of the company, 80% of the graduate employees and 10% of the non-graduate employees are in the Administrative positions. Find the probability that an employee selected at random from those working in administrative positions will be a graduate.
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(ii) A problem in Mathematics is given to three students A, B and C. Their chances of solving the problem are 1/2 , 1/3 and 1/4 respectively. Find the probability that (a) exactly two students will solve the problem. (b) at least two of them will solve the problem.
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