
Five persons- A, B, C, D and E - are either guards of thieves. The guards always tell the truth whereas thieves always lie. A claims that B is a guard. B claims that C is a thief. C claims that D is a thief. E claims that A is a guard. D claims that B and Eare different kinds. The number of thieves is


Important Questions on Decision Making





Automobile accident insurance premium is often higher for red cars than for cars of any other color. To justify these higher charges, insurance companies claim that, overall, a higher percentage of red cars cause accidents than cars of any other color. If this claim is true then damage to lives could undoubtedly be saved by banning red cars from the roads altogether.
The reasoning in the argument is flawed because of the argument.

Smoking bidis (traditional Cigarettes) in bed has long been the main cause of home fires. Despite a significant decline in bidi smoking in the last two decades, however, there has been no comparable decline in the number of people killed in home fires.
Each one of the following statements if true over the last two decades helps to resolve the apparent discrepancy above except.

Our new bank automation system, the purpose of which is to increase productivity and efficiency can be installed during the day, which would disrupt our employees work, or else at night, which would entail much higher installation charges since saving money is important, we will have the system installed during the day.
The system administrator's argument assumes one of the following.
