a box contains 90 discs which are numbered from 1 to 91 of disc is drawn at random from the box find the probability that it bears ¡]a perfect square number [¡¡]a number divisible by 5
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Answer:Total outcomes = 90
(i) Two digit numbers are from 10 to 90 which are 81 in number.
P(getting a two-digit number) =
(ii) Perfect squares are 1, 4, 9, 16, 25, 36, 49, 64, 84.
P(getting a perfect square) =
(iii) Numbers divisible by 5 are 5, 10, .... , 90, which are 18 in number.
P(getting a number which is divisible by 5) =
Step-by-step explanation:
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