Julio is trying to decide between 4 different vendors for a new it system. vendor a is less expensive than vendor c. vendor c is more expensive than vendor b. vendor b is less expensive than vendor d. vendor d is less expensive than vendor a. if julio wants to purchase the least expensive system, which vendor will he pick?

Vendor B

Explanation:

Using letters to represent each vendor and the symbol < to express wich is less expensive the information in the problem can be resumed like this: A<C, B<C, B<D, D<A.

These expressions involving two vendors have at the left the less expensive vendor and at the right, the more expensive, every vendor that appears at the right in one of the relations can't be the less expensive, this disqualifies C, D, and A, then less expensive vendor is B.