Hey Prashant,
A good rule on plugging in questions is never pick anything that makes life too easy. This is because it's possible for more than 1 answer choice to get you the same value if you do so. Why? Imagine this scenario:
(A) 100s
(B) 10000/s
With these answer choices, if you plug in 10 for s, both will result in 1000. So don't pick 10. How would you know not to do that? By looking at the answer choices and noticing the preponderance of 10s, 100s, 1000s, etc.
In your case, Prashant, it's also possible that you made an arithmetic error somewhere. But if you didn't, and this was a situation where two answer choices got the same value, the problem was probably that you picked such a clean number (10,000), which you ought to avoid for just this reason.
-t
P.S. Everybody who keeps posting the same solution over and over, perhaps simply keep your triumph to your own page? There are multiple versions of the same explanation here! I'm excited that you got it and everything, but come on! : )
Tommy Wallach, Company Expert
ManhattanGMAT
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