Question

one card is drawn at random from the number cards numbered from 10 to 21 find the probability that the card may be prime or even number card​

Answer 1

Answer:

probability of getting even number card is 1/2

and probability of getting prime number card is 1/4

and probability of getting prime and even number is 3/4

Answer 2

Answer:

The probability that the card may be prime or even number is $\frac{5}{6}$

Step-by-step explanation:

Explanation:

Given , Cards numbered from 10 - 21

And one card is drawn randomly from the cards numbered from 10 to 21 .

Step 1:

Total number we have  12

10, 11, 12,13,14,15,16,17,18,19,20 and 21

Prime number are   11 , 13 ,17 , 19

Total no. of prime no. = 4

Even number numbers are  10 , 12 , 14 , 16 , 18 ,  and 20 .

Total number of even no. = 6

Probability of prime number =$\frac{4}{12}$  

Probability of even number = $\frac{6}{12}$

Probability that the card may be prime or even number

= $\frac{4}{12}$ +$\frac{6}{12}$ = $\frac{10}{12}$ = $\frac{5}{6}$.

Final answer:

Hence ,the probability that the card may be prime or even number is  $\frac{5}{6}$

#SPJ3