Necessary/Sufficient conditions
Posted: Thu Jul 12, 2012 11:05 pm
Please let me know if I'm thinking about the difference between these two conditions correctly.
I wrote the following stimulus since I have learned that posting LSAT questions is a no-no.
Most people who lose weight do not exercise at all. In fact exercising will be of little value to your weight goals if you eat 99 fried chickens each day.
If all of the statements are true, which one of the following must be true?
(A) Exercising is neither a sufficient nor a necessary condition to lose weight.
I would choose this answer since the first sentence shows that exercising is not a necessary condition. If it was necessary, then there would not be any people who had lost weight.
The last sentence shows that it is also not a sufficient condition since it does not guarantee that if you exercise you will lose weight.
Am I thinking about this correctly?
I wrote the following stimulus since I have learned that posting LSAT questions is a no-no.
Most people who lose weight do not exercise at all. In fact exercising will be of little value to your weight goals if you eat 99 fried chickens each day.
If all of the statements are true, which one of the following must be true?
(A) Exercising is neither a sufficient nor a necessary condition to lose weight.
I would choose this answer since the first sentence shows that exercising is not a necessary condition. If it was necessary, then there would not be any people who had lost weight.
The last sentence shows that it is also not a sufficient condition since it does not guarantee that if you exercise you will lose weight.
Am I thinking about this correctly?