perplexus.info :: Logic : Smart Man

Smart Man (Posted on 2013-10-17)

Of Al, Ben and Cal, only one man is smart.

Al says truthfully:
    1. If I am not smart, I will not pass Physics.
    2. If I am smart, I will pass Chemistry.

Ben says truthfully:
    1. If I am not smart, I will not pass Chemistry.
    2. If I am smart, I will pass Physics.

Cal says truthfully:
    1. If I am not smart, I will not pass Physics.
    2. If I am smart, I will pass Physics.

It is known that:

   I. The smart man is the only man to pass one 
particular subject.
   II. The smart man is also the only man to fail 
the other particular subject.

Which one of the three men is smart and why?

Submitted by K Sengupta

Rating: 3.5000 (2 votes)

Solution: (Hide)

Of the three men, Ben is the smart one.

For a detailed explanation, refer to the solution submitted by Math Man in this location.

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
Smart!	Math Man	2013-10-18 08:52:54
Solution	Salil	2013-10-18 02:48:18
Possible solution	broll	2013-10-17 11:26:59

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