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copy central prints black and white or colored copies. Yesterday, they printed 9 black and white copies for every 2 colored copies. If they printed 200 color copies, how many black and white copies were printed

User MTv
by
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2 Answers

6 votes

\bf \cfrac{bw}{color}\qquad 9:2\qquad \cfrac{9}{2}\qquad \qquad \cfrac{bw}{200}=\cfrac{9}{2}\implies bw=\cfrac{200\cdot 9}{2}
User AbdulKareem
by
7.7k points
1 vote

Answer:

900.

Explanation:

We have been given that copy central prints black and white or colored copies. Yesterday, they printed 9 black and white copies for every 2 colored copies.

We will use proportion to solve the given problem as:


\frac{\text{Black and white copies}}{\text{Colored copies}}=(9)/(2)

Substitute the given values:


\frac{\text{Black and white copies}}{200}=(9)/(2)


\frac{\text{Black and white copies}}{200}*200=(9)/(2)*200


\text{Black and white copies}=9*100


\text{Black and white copies}=900

Therefore, 900 black and white copies were printed.

User Sabalaba
by
8.2k points
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