Question

A bag contains 50 balls. Some of them are white, some are blue and some are red. The number of white balls is 11 times the number of blue balls. The number of red balls is less than the number of white balls but more than the number of blue balls.If one ball is taken out of random from the bag, what is the probability that it is red?

Answer 1

Correct Answer - `(7)/(25)`
Let the number of blue balls be x.
Decide the number of white balls.
The remaining are red balls.
Form two inequations from the given condition.
Find the number of red balls.