Math and Arithmetic

If a car travels 340 miles on 20 gallons of gas how far can it travel on 25 gallons of gas?

Answer

Wiki User
09/12/2011

it's 425 miles. It's a mathematic equation. you say the car travels 340 miles on 20 gallons of gas that's 340 over 20 and you want to know how many miles it travels on 25 gallons of gas, that's x over 25. you write it out as : 340 over 20 = x over 25, cross-multiply and you get 340(25) = 20x. (340*25 is equal to 8500.) thus your equation becomes 8500=20x. divide by 20 on both sides, 8500/20=425, and your answer is x=425 (x representing the amount of miles 25 gallons will travel)