Question

A box contains identical cards on which numbers from 10 to 30 are printed. A card is selected at random. What is the probability that the
number on the card selected is
i) a multiple of 5 ii) a prime number iii) an even number​

Answer 1

Step-by-step explanation:

total outcomes are 20 so here is your answer

Answer 2

Answer: i) 1/4                      

              ii) 6/20

              iii) 11/20

Step-by-step explanation:

i) No. of cards total = 30-10 = 20

  no. of cards with multiple of 5 = 5

  proability= 5/20 = 1/4

ii) No. of prime numbers= 6(11,13,17,19,23,29)

   Proability: 6/20

iii) No.of even numbers = 11(10,12,14,16,18,20,22,24,26,28,30)

   Proability = 11/20