Q. To facilitate manufacture 1000 pairs of shoes in a week, a industry can utilize 1500 workers also 50 machines or 100 machines also 2000 workers. Which method is more likely to be technically efficient?

Q. A and B throw alternatively with a pair of dice. A wins if she throws ' six' before B throws 'seven'; also B wins if she throws' seven' before A throws 'six'. if A begins, Illustrate what is the probability that she wins.