Question

MEDAL+FAN

Honi is looking at a map with a scale of 1/4
in. = 20 miles. She measured the distance from Niceville to Live Oak as 2.5 in. She found the actual distance between Niceville and Live Oak by following these steps:

Step 1: Set up a proportion
1/4/20
=
2.5x

Step 2: Cross multiply
(20)(2.5) = (1/4)(x)

Step 3: Simplify
50 = 1/4 x

Step 4: Solve for x
x = 250 miles

In which step did Honi make a mistake?
A) Step 1
B) Step 2
C) Step 3
D) Step 4