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Cards numbered 11 to 60 are kept in a box. If a card is drawn at
random from the box, find the probability that the number on the
drawn card is (i) an odd number, (ii) a perfect square number,
(iii) divisible by 5, (iv) a prime number less than 20. [CBSE 20141
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Step-by-step explanation:
total possible outcomes= 50
(i) odd numbers= 11,13,15,17,19....,59
total= 25
probability= 1/2
(ii) perfect square= 16,25,36,49
probability= 4/50=2/25
(iii) divisible by 5 = 15,20,25,30,35,40,45,50,55,60
total=10
probability=10/50=1/5
(iv) a prime number less than 20= 11,13,17,19
probability=4/50=2/25
hope it helps u :)
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