QUESTION: 289

A frustrated greengrocer is trying to cell cucumbers at a price of $1.5 per Kg. Unfortunately he has no success. The greengrocer gives a discount of 18% on the original price but than the cucumbers are sold too fast so he raises the price again by 10%. At that final price, how many cucumbers can you buy for $4.5 assuming that there are 12 cucumbers per Kg and that only a whole number of Kgs are sold?

Answer(s): E

Explanation:

1.5 x 0.82 = $1.23.
$1.23 x 1.1 = 1.353$
5 / 1.353 = 4 Kg and change = 48 cucumbers.

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QUESTION: 290

An air-conditioning unit costs $470. On December there was a discount for Christmas of 16%. Six months later, the holiday season was over so the company raised the price of the air-conditioning by 16%. How much will an air-conditioning unit cost in November?

$458
$470
$472
$484
$491

Answer(s): A

Explanation:

Pay attention, when you raise a number by X% and than you reduce X% you don’t get the original number again because the second time you took X% off you reduced it from a larger number thus answer A is not the correct one, let’s check:
470 x 0.84 = 394.8.
394.8 x 1.16 = approximately $458.
A simpler way to solve this problem is by knowing that the price would be lower than the original price because we increased and decreased the same amount of percentage.

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QUESTION: 291

In a rectangular coordinate system, what is the area of a rectangle whose vertices have the coordinates (-4, 1), (1, 1), (1, -3) and (-4, -3)?

Answer(s): B

Explanation:

First draw the x and y axes, then plot the points and connect them, right away you can see that the base is 5 units and the height is 4 units. The area of the rectangle is 20.

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QUESTION: 292

In a rectangular coordinate system, what is the area of a rhombus whose vertices have the coordinates (0, 3.5), (8, 0), (0, -3.5), (-8, 0)?

Answer(s): A

Explanation:

First draw the x and y axes, then plot the points and connect them.
The area of a rhombus is simply the product of its diagonals divided by 2. The area is = 16 x 7 = 112/2=56.

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Free GMAT SECTION 2: QUANTITATIVE Exam Braindumps (page: 73)

QUESTION: 289

Explanation:

QUESTION: 290

Explanation:

QUESTION: 291

Explanation:

QUESTION: 292

Explanation: