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If a square's side is increased from 5 units long to 6 units

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by BTGmoderatorDC » Fri Jul 20, 2018 9:30 pm

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Answers

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B

C

D

E

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Difficulty—

If a square's side is increased from 5 units long to 6 units long, which of the following is the percent by which the area is increased?

A. 1%
B. 4%
C. 11%
D. 36%
E. 44%
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by [email protected] » Sat Jul 21, 2018 12:03 pm
Hi All,

We're told a SQUARE's side is increased from 5 units long to 6 units long. We're asked for the percentage increase in the AREA of the square.

Percentage Change = (New - Old)/(Old)

Area of the "old" square = (5)(5) = 25
Area of the "new" square = (6)(6) = 36

Percentage Increase = (36 - 25)/(25) = 11/25 = 44%

Final Answer: E

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by Jeff@TargetTestPrep » Wed Jul 25, 2018 4:34 pm
BTGmoderatorDC wrote:If a square's side is increased from 5 units long to 6 units long, which of the following is the percent by which the area is increased?

A. 1%
B. 4%
C. 11%
D. 36%
E. 44%
The old area is 25 and the new area is 36, so the percent increase is:

(36 - 25)/25 x 100

11/25 x 100 = 11 x 4 = 44%

Answer: E

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