A). 4.8 Inches represents 60 miles.
The given scale is 2 = 25; inches to miles. So, convert the scale.
25 x 2.4 = 60
2 x 2.4 = 4.8
B). 1/4 inch represents 3 1/8 miles.
The given scale is 2 = 25; inches to miles. So, convert the scale.
2 x .125 = 1/4
25 x .125 = 3.125 or 3 1/8