Re: The number of years it would take for the value of an invest
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11 Aug 2018, 13:35
Super important to work smart on these questions. With a proper calculator, you would use logarithms to solve this, but as the GRE doesn't allow a proper calculator, you should note that you have an ascending list of numbers, and check first B and then (if necessary) D. If B gives you a value that is too large, your answer is A. If B gives you a value that is too small, you check D. If D gives you a value that is too large, your answer is C. If D gives you a value that is too small, your answer is E.
Let's do it:
1.26^3 = 2.0004.
Here we get lucky and B is your answer. Still, we would only have needed to check one other option had B been incorrect. This method will save you A LOT of time on test day.