3. Point A and point Bare 3.7 miles apart on
a mountain in New York Point Ahas án
elevation of 1,175 feet, and point Bhas an
elevation of 1,600 feet. What is the gradient
between these points?
(1) 12 ft/mi
(3) 115 ft/mi
(2) 97 ft/mi
(4) 1,918 ft/mi