19. From a set of 17 cards numbered 1, 2, 3, ....., 16, 17, one is drawn at random show that the probabil
appearing a number which is divisible by 3 or 7 is 17.
(Hint: There are 17 cards numbered 1, 2, 3......... 16. 17 in a set. One card is drawn at random. Numbers
are divisible by 3 or 7 are {3, 6, 7, 9, 12, 14, 15), i.e.. seven cards are divisible by 3 or 7.]
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Answer:7/17
Step-by-step explanation:
Since there are only 7 numbers which are divisible by 3 and 7 i.e. 3,6,7,9,12,14,15 between 1 to 17 .
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