Answer:
The time taken to travel 40km is 1/3 hours or 20 minutes.
Step-by-step explanation:
Given that the formula to calculate speed is Time = Distance/Speed. Then, you have to substitute the values into the formula :
[tex]time=distance \div speed[/tex]
[tex]let \: distance = 40 \\ let \: speed = 120[/tex]
[tex]t = 40 \div 120[/tex]
[tex]t = 1 \div 3[/tex]
[tex]t = \frac{1}{3} hours \: \: or \: \: 20minutes[/tex]