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For which of the following values of x is the mode of

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by BTGmoderatorDC » Sat Sep 12, 2020 7:18 pm

Timer

00:00

Answers

A

B

C

D

E

Stats

Difficulty—

For which of the following values of x is the mode of 2x, x + 5, 3x − 2, 5x − 7, and 4x equal to 4 ?

A. 2
B. 3
C. 4
D. 5
E. 7


OA A

Source: Princeton Review
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Re: For which of the following values of x is the mode of

by Nirav Umaretiya » Sat Sep 12, 2020 8:22 pm
In this PS, the best way is to go by the 'Trial & Error' method.
Remember, there will only be one correct answer, so if you get the answer, don't waste time in calculating other options.

Option A = 2
2x = 2(2) = 4
x+5 = 2+5 = 7
3x-2 = 3(2)-2 = 4
5x-7 = 5(2)-7 = 3
4x = 4(2) = 8

The mode is clearly 4, so mark 'A' and move ahead.
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