QUESTION: 413

Liz drove from point A to point B at 40 Km/h. On her way back she drove at 50 Km/h and therefore her way back lasted one hour less. What is the distance (in Km) between A and B?

150.
200.
600.
450.
500.

Answer(s): B

Explanation:

The length of the road from A to B is 40 x X, where X is the time. The road back is: 50(X – 1). The road is the same length so
40X = 50(X – 1) ---> X = 5 hours. The distance is 200 Km.

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The average speed of a Zebra is 4 times faster than that of a horse.
The Zebra started to run at 5:00 o’clock and the horse started two hours later. What is the Zebra’s speed if the total distance that the two animals traveled until 10:00 o’clock is 46 Km?

11.5.
12.
16.
8.
6.5.

Answer(s): D

Explanation:

Let X be the horse’s speed. The following equation came from the data: 4X x 5 + X x 3 = 46 ---> X = 2 Km/h. The zebra’s speed is 8 Km/h.

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QUESTION: 415

Two dung beetles start to run simultaneously towards each other when they’re 150 feet apart. The first beetle runs at a speed of 20 feet per minute and the second beetle runs at a speed of 10 feet per minute. At the moment they start running towards each other a fly leaves the first beetle and flies towards the second one at a speed of 70 feet per minute, when he gets there he turns around and starts to fly towards the first beetle and so on. What is the total distance in feet that the fly will travel until the beetles meet?

250.
200.
300.
350.
400.

Answer(s): D

Explanation:

The distance between the two beetles is 150 feet; they are running together at a speed of (10 + 20) 30 feet per minute, therefore it will take them 5 minutes to meet. The fly flies at a speed of 70 feet per minute so he travels a total distance of 5 x 70 = 350 feet.

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QUESTION: 416

In a jar there are balls in different colors: blue, red, green and yellow. The probability of drawing a blue ball is 1/8.
The probability of drawing a red ball is 1/5. The probability of drawing a green ball is 1/10.
If a jar cannot contain more than 50 balls, how many yellow balls are in the Jar?

Answer(s): A

Explanation:

If 1/8 is the probability of drawing a blue ball then there are 40/8 = 5 blue balls in the jar. And with the same principle there are 8 red balls and 4 green ones. 40 – 5 – 8 – 4 = 23 balls (yellow is the only color left).

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Free GMAT SECTION 2: QUANTITATIVE Exam Braindumps (page: 104)

QUESTION: 413

Explanation:

QUESTION: 414

Explanation:

QUESTION: 415

Explanation:

QUESTION: 416

Explanation: