Question

number 1, 2 ,3 ,......,100 are written ( one number on one card and no number is repeated)are put in the bag and thoroughly mixed.a card is drawn at random from the bag find the probability that card taken out as (i)an even number(ii )a number which is a particle of 13th(iii) a perfect square number(iv) a prime number less than 20

Answer 1

1=50,2=7,3=9,4=7
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