Each natural numbers from 1 to 20 is written on paper slips and put in a box. One slip is taken from the box, The probability of getting a prime number is :
A1/5
B3/5
C2/5
D4/5
Answer:
C. 2/5
Read Explanation:
Prime numbers = 2,3,5,7,11,13,15,17,19
Probability = 8/20= 2/5