Question

The ratio of red to black pens in a drawer is 4 to 7. Which statement is true? There could be 12 red pens and 21 black pens. There are exactly 11 pens in the drawer. There could be 20 red pens and 28 black pens. For every 4 red pens, there are 11 black pens.

Answer 1

Answer:

there could be 12 red pens and 21 black pens.

Step-by-step explanation:

• we can divide 12& 21 by three and we get 12:21-4:7,
• so there could be three sets of red pens and seven sets of black pens.

• we cannot add 4 and 7 since they r in the ratio form.