Two cars traveled equal distances in different amounts of time. Car A traveled the distance in 2h, and Car B traveled the distance in 1.5 h. Car B traveled 15 mph faster that car A. How fast did Car B travel?

llm

Answered on Thu Mar 24 2022

Let s be the speed of car A

Then, speed of car B is s + 15 .

Formula: distance = speed × time

And according to question distance travelled is equal. Thus,

s × 2 = (s+15) × 3/2

4s = 3s + 45

4s - 3s = 45

s = 45

Speed of car A = 45 mph

Then, speed of car B = 45 + 15 = 60 mph

Hence, speed of car B is 60 mph.