Question

Cards bearing numbers 2,3,4...11 are kept in a bag. a card is drawn at random from the bag. the probability of getting a card with a prime number is

Answer 1

probality of getting a prime no.. 5c1/10c1 = 5/10
1/2 ans

Answer 2

Answer:

$\frac{1}{2}$

Step-by-step explanation:

Given : Cards bearing numbers 2,3,4,5,6,7,8,9,10,11

To Find :the probability of getting a card with a prime number

Solution:

Cards bearing numbers 2,3,4,5,6,7,8,9,10,11

Total no. of cards = 10

Cards bearing prime number s= 2,3,5,7,11

Total no. of prime cards = 5

So,  the probability of getting a card with a prime number:

= $\frac{\text{no. of prime number cards}}{\text{Total No. of cards}}$

= $\frac{5}{10}$

= $\frac{1}{2}$

Hence the probability of getting a card with a prime number is $\frac{1}{2}$