Are we expected to know sqrt of non-perfect squares?
I'm doing a MGMAT problem which required me to have knowledge of what sqrt2 and sqrt3 is. I can generally estimate but didn't know that they were ~1.7 and ~1.4. When I generally estimated I could make an educated guess but the problem is that the answer choices were so close that it was hard to guess.
Basically I needed to be able to estimate
Answers had 20%, 25%, 30%, 35%, 40% as choices.
You may remember the following square roots:
but I believe that in GMAT there won't be any questions requiring the decimal values of square roots. Also, there are no close enough choices in GMAT.
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