Arithmetic Ability
 Probability

26 / 132

Q.

Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5 ?

View Answer

Correct choice: B

Explanation:

Multiples of 3 below 20 are 3, 6, 9, 12, 15, 18 Multiples of 5 below 20 are 5, 10, 15, 20 Required number of possibilities = 10 Total number of possibilities = 20 Required probability = 10/20 = 1/2.
26 / 132