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:

LCM * 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

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Categories : GMAT Quant |

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. |

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