Inventor: All highly successful entrepreneurs have as their main desire the wish to leave a mark on the world. Highly...

Grace on November 26 at 04:11AM

Please explain the answer.

Not seeing why entrepreneurs are the only people who have ideas they want to implement. E -> ITI Not ITI -> E, which is what C seems to imply? I picked A. Thanks!

2 Replies

Ravi on December 20 at 11:06PM

@GLEE,

The conditional statement you've written is missing a bi-conditional arrow.

In the stimulus, we have

Highly successful entrepreneur - >main desire to leave a mark on the world
Highly successful entrepreneur< - >(See soln. - >Implement Idea)

Interestingly enough, the final sentence of the stimulus is actually completely redundant, as it's just the contrapositive of the biconditional statement from the second sentence:

(/II - >/See soln.)< - >/Highly successful entrepreneur

In combining the first two conditional statements above, we have

(See soln. - >Implement Idea)< - >Highly successful entrepreneur - >main desire to leave a mark on the world

From this, we see that (See soln. - >Impelment Idea) - >main desire to leave a mark on the world.

Answer choice (C) matches this perfectly, as it states that the main desire of all people who implement solutions whenever they detect them is to leave a mark on the world. This is a statement that must be true if all of the inventor's statements are true.

(C) maps to (See soln. - >Implement Idea) - >main desire to leave a mark on the world.

(A) is incorrect because we have no idea about the distribution of people in this hypothetical world. What if almost everyone in is a highly successful entrepreneur? Since we don't know about the relative percentages of people who are and aren't highly successful entrepreneurs, (A) is a statement that doesn't have to be true.

Irene on June 28 at 04:59AM

Sorry, could you explain or go into detail about how the last conditional statement is the contrapositive of the second. I've tried to see it and still cannot.