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GMAT Quant

Categories : GMAT Quant

The L.C.M. of the two numbers is 35750 and their H.C.F. is 25. If, one of the numbers is 275, what is the other number?

A)
3150
B) 3200
C) 3215
D) 3250
E) 3255

Solution: There are two ways to solve this problem, one create two equations for L.C.M and H.C.F, and solve them to find the second number but a much simple solution would be to use an equation like:

L
CM * HCF = Product of the two numbers

Let the second number be Y

Plugging in values, we get,

37550 * 25 = 275 * Y

Y = 3250

Correct Answer: D
About the Author

Gyan One...


Some of you have left Math behind, never to touch it again and all of a sudden GMAT comes along :-) . You know that you were good in Math but now that since there has been a lag; there is always a fear to catch up on the fundamentals. The lines, polygons, integers, triangles and the worst of all-permutation and probability start to bother you. You know you knew this stuff- Infact you were always a grade A student and know to have to get back on it.

What’s the best way to get at it? Well there are different strategies and people figure out what works for them and what does not. But always remember this- If you were good in Math at one point of time, you are still good in Math. You have not lost your Quant and so do not loose faith…. Have confidence. It’s just a matter of days before you can catch on to it and then GMAT Quant is fun and you will enjoy it. The best way to work the Quant preparation is to get to the Official Guide notes and go through them. Try to not only read them but also try to derive, think and work out similar formulas. This will brush up some of the formulas and the topics. Also, this is what you can do if you want fast results. Read a topic from the Official Guide, and immediately get to the Grockit site and play a game on those topics preferably in groups. That would bring out a lot of questions and while discussion you will tend to get the old Math concepts from...

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