Question

2. A bag has 8 red balls and 4 white balls in it. One ball is taken out at random.
(i) What is the chance that it is a red ball?
(ii) What is the chance that it is a white ball?
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Answer 1

8+4=12,total number of balls =12

probability of red ball =8/12=2/3

Probability of white ball =4/12=1/3

You can check by adding both probabilities ,if it is 1 then your answer is right.

Answer 2

Answer:

8+4=12balls in total in the bag.

1)red ball=8÷12=0.6%

2)white ball=4÷12=0.3%