Sachin9 wrote:
Thanks Mike, I suppose this is how it should be
If I have a speed that is 1.5 times faster than this, that's 2.5*V
If I have a speed that is 1.5 times as fast as this, that's 1.5*V
Is my understanding correct?
Dear Sachin
We are getting into some really subtleties of grammar and phrasing here.
If I have a speed that is 1.5 times as fast as V ----> that clearly should be 1.5*V
If my speed was V, but increased by 1.5 this value ----> that clearly should be 2.5*V
If I have a speed that is 1.5 times faster than V -----> not 100% percent clear, but I would say most people would interpret this as 1.5*V. The GMAT is always crystal clear in its phrasing. There is no way they would use this phrasing and expect you to come up with 2.5*V.
Part of what is unusual about this conversation is we are talking about the increases of
speed. Almost everyone compares speed by saying "n times faster." In real life,
no one ever talks about percentage increase or decreases for speed.
Let's change the subject to something like profits. You are perfectly correct ---- If I say "profits increased by 150%", that's 2.5 times the original profits.
Does all this make sense?
Mike
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