A box has 100 cards numbered 1 to 100. A card is drawn without looking at it. What is the chance that the card will bear a prime number?
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Answered by
3
Answer:
there are 25 prime no. b/w 1 to 100...
therefore probability of finding a prime no. is .
25 ÷100 = 0.25 or there are 25% chance for a prime no.
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Answered by
6
Answer:
Number of Cards= 100
Number of Cards picked= 1
Find the probability of the card being a prime number
Prime numbers from 1 to 100= 2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,87,89,97
No of prime numbers= 25
Probability of the being a prime number =
No of prime number/total number of cards=
25/100= 1/4 or 25/100 = 25%
Probability = 1/4 or 25%
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