Card marked with numbers 2 to 90 are placed in a box and mixed thoroughly. One card is drawn at random from the box. Find the probability that the card drawn is (i) A two-digit number. (ii) A number which is a perfect square.
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n(s)=89
(i ) event A =(10,11,12.....90)
n(A)=81
p(A)=81/89.
(ii)event B=(4,9,16,25,36,49,64,81)
n(B)=8
p(B)=8/89
(i ) event A =(10,11,12.....90)
n(A)=81
p(A)=81/89.
(ii)event B=(4,9,16,25,36,49,64,81)
n(B)=8
p(B)=8/89
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Answer:
8/89
Step-by-step explanation:
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