Catching upLesson 164 of the lessons course of Mova's primary school: 4 sentences, each with its syntax tree and pragmatics. The lessons are written for Mova, and their agreed trees are part of Mova corpus 0.4 (CC BY-SA 4.0).0When a faster traveller chases a slower one going the same way, the gap shrinks by the difference of the speeds every hour.1A bus at 40 km an hour leaves 3 hours before a car at 60 km an hour.2The bus is 40 × 3 = 120 km ahead.3The car gains 60 − 40 = 20 km each hour, so it catches the bus after 120 / 20 = 6 hours.← previousMoving towards each other and moving apartnext →Working together↑ back to LessonsThis page in Markdown → https://md.mova.elamur.ai/free/en/corpora/school/lessons/164-catching-up/