travel for 3 hours at a speed. Bob travels at 10km/h slower and same journey take her 4 hours.

Question

How long is the journey? 120km how do they get that? How long is the journey? 120km how do they get that?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 How long is the journey? 120km how do they get that? How long is the journey? 120km how do they get that? How long is the journey? 120km how do they get that? How long is the journey? 120km how do they get that? How long is the journey? 120km how do they get that? How long is the journey? 120km how do they get that? How long is the journey? 120km how do they get that? How long is the journey? 120km how do they get that? How long is the journey? 120km how do they get that? How long is the journey? 120km how do they get that?

Answer 1

Distance traveled by first boy = distance traveled by Bob.

x is the speed of the first guy.

x=10 Bob's speed

3x=4(x-10)

3x=4x-40

x=40

40 * 3=120