Q16: A box of colored pencils contains

October 15, 2026

2018 Test A Math · Question 16 of 57

A box of colored pencils contains exactly 6 red pencils. The probability of choosing a red pencil from the box is $\dpi{100} \frac{2}{7}$ . How many of the pencils in the box are not red?

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Correct answer: B

Let $x$ be the total number of colored pencils in the box. Set up a proportion to find $x$ :

$frac{2}{7}=frac{6}{x}$

$2x=42$

$x=21$

If there are 6 red pencils, then the number of pencils that are not read is

21 − 6 = 15.