Discussion
Assuming that the above statements are true, which one of the following must also be true?
*This question is included in Nova Press: Set E - If/Then Logic Practice, question #1
| (A) | If ethnic strife continues in Russia, then a 20% increase in GNP will be unattainable. |
| (B) | ... |
| (C) | ... |
| (D) | ... |
| (E) | ... |
| (F) | ... |
The solution is
Posted: 03/07/2012 19:41
Why is answer C not true?
Posted: 03/07/2012 20:30
"To avoid collapse, Russia must increase GNP by 20%" to "If Russia does not increase GNP by 20%, it will collapse". Or:
~20% ---> Collapse
But, it does not follow that if Russia increases GNP by 20% that it will not collapse. In other words, "20% ---> Not Collapse" is not true. There may be other conditions necessary to prevent a collapse.
So C is very tempting, but incorrect.
~20% ---> Collapse
But, it does not follow that if Russia increases GNP by 20% that it will not collapse. In other words, "20% ---> Not Collapse" is not true. There may be other conditions necessary to prevent a collapse.
So C is very tempting, but incorrect.