Question

What’s the final horsepower when driving a car in Denver (an elevation of 5,280 feet) that’s rated at 300 horsepower? A. 250.4 B. 271.5 C. 252.48 D. 271.28

Answer 1

The Answer is C 252.48 horsepower

Explanation:

To the get better understanding of answer above

First we have to understand that it is a rule of thumb that for every 1000 feet the horsepower reduces by 3 percent.

From the question the car horsepower is 300

3 percent of 300 is lost for 1000 feet

x percent of 300 is lost for 5280 feet

3 percent of 300 = (3 ÷ 100) × 300 =0.03

In term of the relationship between loss of horsepower and altitude

0.03 = 1000

x = 5280

cross multiply

`x = (0.03 × 5280)÷1000`

= 252.48