B. 50 km
Seeing as the truck would travel approximately 100 kilometers in an hour, or 60 minutes, it would travel half that distance in half the time--50 kilometers in a half hour, or 30 minutes.
Answer:B
Explanation:
Speed= distance/time
Distance= speed× time
Speed= 100km/hr
Time= 30 mins or 0.5 hours
Therefore: distance= 100×0.5= 50Km
Note:60 minutes make one hour!
