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Simple Video Explanations |
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GMAT Test: Crazy Math Problem – Solved!
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So I got this crazy math problem from a GMATPill student who was using ManhattanGMAT material and didn’t quite understand their explanations. (It’s OK ManhattanGMAT–nobody’s perfect).Well, here’s the video that I sent back to my student.
Step 1) Notice that the numbers are EVEN and are SQUARES.
Step 2) Notice that the question is not asking for x. Rather, it is asking for some weird expression—SQUARED.
Step 3) Identify that it might make sense to re-write the equation with squares so they better match up with what we’re trying to solve for.
Step 4) Recognize that the squares now cancel out, leaving us with 4^(2x) = 40
Step 5) Recognize that the question is asking us something that looks different–but we can rewrite it so that it includes the term that we already found in step #4.
Step 6) Do the division and arrive at 2.5 –TADA!!
Other GMAT Prep Questions:
GMAT Math Word Problem
GMAT Math Mixture Problem8 responses to “GMAT Test: Crazy Math Problem – Solved!”
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Roselyn
hey this is what i need, i was looking for it.
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alley
hi this is working for me exactly the same way i saw it on the gmat website other
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rocky
so funny it looks! but it also is explained in a good manner
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leena
i hate maths but this was a bit interesting
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This is a great method. Why did I never know about this?? Thanks.
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pablo
whoa, don’t think i would’ve gotten that from the get-go
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mathdummy
Zeke, HELP ME!!!! I’m trying to sign up to the course, but everytime I try to enroll, the page freezes up and I can’t sign up. Please e-mail me with help. I’m desperate to sign up. usma_alecram@yahoo.com
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dispenses utilize a wonderful web site decent Gives bless you for the efforts to help out everyone
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