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Q.5. A box contains 6-Red, 5-Green, 4-Blues and 3-Black balls. Four balls are drawn at random. What is the probability that: (a) All are of same colors. (b) All are of Red (c) All are of not Black (d) All are of Green or Blue. (e) All are of different colors. Q.6. The probabilities that three men hits the target are 0.2, 0.25 and 0.3 respectively. What is the probability that: (a) Exactly one hit. (b) At least two misses. (c) All hit. (d) Majority hit the target. (e) At most two hit. Q.7. In a large cupboard of books consisting of 8-books of Mathematics, 10-books of Statistic books of Accounting and 5-books of Economics. Four books are chosen for study purpose. Wh the probability that: (a) Only Statistics books will be chosen. (b) There will be 3-Accounting chosen for study. (c) Only Statistics and Economics Books will be chosen. (d) There is no Accounting is chosen. (e) All are of same subject