SOLUTION: If 3 books are picked at random from a shelf containing 5 novels, 3 books of poems, and a dictionary. What is the probability that
(a) the dictionary is picked
(b) 2 novels and 1
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-> SOLUTION: If 3 books are picked at random from a shelf containing 5 novels, 3 books of poems, and a dictionary. What is the probability that
(a) the dictionary is picked
(b) 2 novels and 1
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Question 423266: If 3 books are picked at random from a shelf containing 5 novels, 3 books of poems, and a dictionary. What is the probability that
(a) the dictionary is picked
(b) 2 novels and 1 book of poems are selected?
Thanks for the help! Answer by sudhanshu_kmr(1152) (Show Source):
a) no. of ways to select 1 dictionary and 2 other books =8C2* 1C1 = 28
required probability = 28/84
= 1/3
b) no. of ways to select 2 novels and 1 poem book = 5C2 * 3C1 = 10 * 3 = 30
