Question

John has a map that shows a rectangular park 1 1/4 cm : 8 yd. on the map, the width of the park is 2 1/2 cm. What is the parks actual length?

Answer 1

16 yd. This is the park's actual length.

Explanation:

Write and solve an equation of ratios:

1 1/4 cm 8 yd

------------ = -----------

2 1/2 cm x

Note that 2(1 1/4 cm) = 2 1/2 cm, so the above equation becomes:

1 8 yd

----- = ---------

2 x

Solving for x, we get x = 16 yd. This is the park's actual length.