sandy wrote:

a and b are positive integers.

Quantity A: \(a/b\)

Quantity B: \(\frac{(a+3)}{(b+3)}\)

One of my favorite QC strategies is called "Looking for Equality" (free video on this topic here:

http://www.greenlighttestprep.com/modul ... on?id=1099).

In this strategy, I first look for values of x such that the two quantities are equal. This often involves checking some easy numbers like 0, 1, -1 etc.

Consider these two cases:

Case #2: a = 1 and b = 1

Quantity A: a/b = 1/1 = 1

Quantity B: (a+3)/(b+3) = (1+3)/(1+3) = 4/4 = 1

Since the two quantities are EQUAL, the correct answer is either C or D

Now try some other values of a and b:

Case #2: a = 1 and b = 2

Quantity A: a/b = 1/2

Quantity B: (a+3)/(b+3) = (1+3)/(2+3) = 4/5

Since the two quantities are NOT EQUAL, the correct answer is D

Cheers,

Brent

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Brent Hanneson – Creator of greenlighttestprep.com

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