What is the likelihood of choosing a red pen from the following pack of pens? A pack of 20 pens contains 2 red pens, 8 blue pens, and 10 black pens.

A.
Impossible

B.
Unlikely

C.
Likely

D.
Certain

0.01 (B:  unlikely)

Step-by-step explanation:

2 out of the 20 pens are red.  Thus, the probability of selecting a red pen is 2/20, or 0.01 (B:  unlikely)

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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