Question

In a box there are 4 white ball, 6 red ball, 7 black ball and 3 blue ball. One ball is drawn find the probability of the ball may be.
(i) White ball (ii) Black ball (iii) White or black ball (iv) Red and white.



plz solve in a paper.....☺☺​

Answer 1

please mark as a brainliest answer

Answer 2

    Total no. of outcomes = 20

    1.  Favourable  number of outcomes =4                                                                                                    

        Probability = Favouable no. of outcomes/ Total no. of outcomes

                           = 4/20 = 1/5

    2.  Favourable no. of outcomes = 7

         Probability = 7/20

    3.  Favouable no. of outcomes = 7+4 = 11

         Probability = 11/20

    4.  Favouable no. of outcomes = 3+4 = 7

         Probability = 7/20