A box contains cards numbered 50 to 145. A card is drawn at random from the box. Find the probability that the number on the drawn card is
a. A multiple of 11
b. A square number
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Answer: (a) 8/96. (b) 5/96
Step-by-step explanation: Total number of cards = (145 - 50) + 1 = 96
(a) 55,66,77,88,99,110,121,143 all the multiples of 11 between 50 and 145
(b) 64,81,100,121,144 all perfect square numbers between 50 and 145
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