Question

90 cards numbered from 1 to 90 are placed in a box. If one card is drawn at random

from the box find the probability that it is:

(i) a two-digit number

(ii) a perfect square

(iii) a number divisible by 5.​

Answer 1

Answer:

Step-by-step explanation:

total no. of outcomes = 90

    P(E) =no. of outcomes/total no. of outcomes

(1) no. of outcomes= 81

       P(two-digit number) = 81/90

                                        = 9/10

(2) no. of outcomes= 9

    P(a perfect square) = 9/90

                                     = 1/10

(3) no. of outcomes= 18

       P(a number divisible by 5)= 18/90

                                                  = 2/10

                                                   = 1/5

 Hope you understand this question