Question

A box contains 25 cards numbered 1 to 25
Three card is drawn at random from the box. Find
the probability that the numbers are not
consecutive?
A. 1/100
B. 2/99
C. 98/99
D. 99/100​

Answer 1

Step-by-step explanation:

The favorable numbers = prime numbers =2,3,5,7,11,13,17,19,23

Numbers of favorable outcomes =9=n(E)

Number of total cards=25=n(S)

P( drawn card is prime number )=P(E)=n(S)n(E)=259