A box contains cards numbered 11 to 123. A card is drawn at random from the box.
Find the probability that the number on the drawn card is
(i) a square number
(ii) a multiple of 7
Answers
Answered by
6
a)probability of a square 8/113
b)probability of a multiple of 7 15/113
b)probability of a multiple of 7 15/113
Answered by
14
square no. events={16,25,36,49,64,81,100,121}
total no. of events=123-11+1=113.
so, probability of getting a square no. = 8/113
divisible by 7 events={14,21,28,35,42,49,56,63,70,77,84,91,98,105,112,119}
so, probability=16/113
total no. of events=123-11+1=113.
so, probability of getting a square no. = 8/113
divisible by 7 events={14,21,28,35,42,49,56,63,70,77,84,91,98,105,112,119}
so, probability=16/113
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