A car travels 240 miles using 8 gallons of fuel. If fuel efficiency decreases by 10% on a longer trip, how many gallons are needed to travel 360 miles?

Sat, 02 May 2026 03:01:13 +0000

Title: How Fuel Efficiency Impacts Long-Distance Driving: Solving the 360-Mile Trip Problem When planning a road trip, one of the most essential factors to consider is fuel efficiency. Suppose a car travels 240 miles using 8 gallons of fuel—this gives us a baseline fuel efficiency of 30 miles per gallon (mpg). However, fuel efficiency often decreases under challenging conditions like long-distance travel, traffic, or longer routes. In this article, we’ll analyze how a 10% drop in efficiency affects fuel consumption for a 360-mile journey, helping you estimate exactly how many gallons you’ll need. ### Step 1: Calculate the Original Fuel Efficiency First, we determine the car’s baseline fuel economy:
Distance = 240 miles
Fuel used = 8 gallons
Fuel efficiency (mpg) = 240 ÷ 8 = 30 miles per gallon