A driver can travel 54 km at a constant speed. If he drives 3 km/h faster, he would have saved 3 km/h faster, he would have saved 3 hours. Let x be the speed of him originally, find the value of x.

Answer 1

solve for x:

54/x - 54/(x+3) = 3

(That's jogging speed. What is that person driving?)

Answer 2

btw, Steve gave you the same solution earlier this morning.
https://www.jiskha.com/questions/1756222/A-driver-can-travel-54-km-at-a-constant-speed-If-he-drives-3-km-h-faster-he-would

Why are you reposting the same question ?