1. The problem statement, all variables and given/known data Before a race the chances of three runners, A,B,C were estimated to be proportional to 5,3,2; but during the race A meets with an accident which reduces his chance to one-third. What are now the respective chances of B and C? 2. Relevant equations 3. The attempt at a solution The ratio of chance of A to B is 5/3. But the chance of A after accident is 1/3. Let chance of B be x. Since the ratio is same ∴ x= 1/5. But the correct answer is just the double of this.