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### Re: GMAT Maths

Hello Paloma,

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Sebastian A. Moreno

Manhattan Review
New York, NY 10016

Phone: +1.212.316.2000
Free: +1.800.246.4600
Europe: +44.203.318.6055
Wed Jul 29, 2015 12:29 am

### Re: Arithmetic Homework

Hello fogundiy,

Below is the answer to the problem with an explanation from our senior
Manhattan Review instructor, George:

Answer to Question 42 is (E):

First figure out which are the cheapest roses. The first bunch is \$4.30
per rose, the second is \$3 per rose, the third is \$50/12 per rose. The
third is obviously the cheapest.

Clearly, to purchase the maximum number of roses, almost all of the
roses will have to be of the cheapest sort. How many can you purchase
for \$680? Divide 680 by 25/12. That comes to 326.4. Look among the
answer choices. How much will 324 of the cheapest cost? The answer is
\$675. Therefore, we have \$5 left over. We can buy an additional rose.
There is only one answer that is greater than 324, and that's (E), which
is 325.

We hope this explanation helps! To receive a free online practice exam
with similar challenging questions call us at +1.800.246.4600

--
Sebastian A. Moreno

Manhattan Review
New York, NY 10016

Phone: +1.212.316.2000
Free: +1.800.246.4600
Europe: +44.203.318.6055
Fri Aug 21, 2015 3:59 am

### Re: Arithmetic Homework

Hello fogundiy,

Below is the answer to the problem with an explanation from our senior
Manhattan Review instructor, George:

Answer to Question 38 is (D):

Draw a pipe of length of 1 yard. You have to mark it out in 1/4s and
1/3s. Express that in terms of a common denominator, namely, 12. Thus,
1/4 is 3/12 and 1/3 is 4/12.

Start marking out the pipe. The first marker is 3/12, the second is
4/12, the third is 6/12, the fourth is 8/12, the fifth is 9/12, the
sixth is 12/12. Start cutting the pipe at each of the markers. The first
portion will be 3/12 or 1/4. The second portion will be 4/12 minus the
3/12 that has already been cut off, i.e., 1/12. The third portion will
be 6/12 minus the 4/12 that has already been cut off, i.e., 2/12 or 1/6.
The fourth will be 8/12 minus 6/12, i.e., 2/12 or 1/6. The fifth
will be 9/12 minus 8/12, i.e. 1/12. The sixth will be 12/12 minus 9/12,
i.e. 3/12 or 1/4.

There are thus only three distinct pipe lengths: 1/4, 1/6 and 1/12.

with similar challenging questions call us at +1.800.246.4600

Best of luck with your studies!

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Sebastian A. Moreno