Question

There is a black bag which contains 100 identical balls. 99 of those balls are red in colour and remaining 1 is white. Now, if you take a ball out of the bag, what can be said about its colour?

• A. It must be red
• B. It must be white
• C. May be red or white
• D. Nothing can be said about the colour.

Answer 1

The correct option is C

May be red or white

The withdrawn ball may be of red colour or white colour. Since red balls are 99 in number, it is more likely that withdrawn ball will be red in colour. Similarly, it is less likely that ball will be white. We can never be sure that withdrawn ball is of red or white unless all the balls are of the same colour or there is only one ball in the bag.