A) The probability that a free-lancer gets an electric contract is 2/7 and that of …
A) The probability that a free-lancer gets an electric contract is 2/7 and that of his getting a plumbing contract is 3/5. If the probability of his getting at least one of the contracts is 5/7. What is the probability of his getting both the contract? B) Of 150 students, 90 girls and 60 are boys, 60 of the Girls and 30 of the boys read story book daily. A student is selected at random from the lot. What is the chance that selected would be a Boy or read story book. . C) In how many ways can a cricket eleven be chosen out of 15 players? How many of them will i. Include 3 particular player. ii. Exclude 4 particular player.
Hmmm... This is a tough one :(
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