Question

A box contains cards numbered from 10 to 60. If one card is
drawn at random from the box, find the probability that it
a) is a prime number
b) is a multiple of 3 and 4.​

Answer 1

Answer:

(a) 13

(b)5

Step-by-step explanation:

Answer 2

Answer:

a)

$\frac{6}{25}$

b)

$\frac{1}{2}$

Step-by-step explanation:

For a)

1st count the number of prime numbers from 10 to 60 (which is 12)

Divide it by the total number of values (given by 60-10)

For b)

count the multiples of 3 ( for eg 12,15,18,....,60) and 4 ( for eg 12,16,20,.....,60 )

* ignore the numbers that occur twice

Divide it by the total number of values (given by 60-10)