Q1 · hard · AI-verified
Two cars start simultaneously from points A and B, which are 300 km apart, and travel towards each other. Car 1 travels at 45 km/h and car 2 at 55 km/h. After how much time will they be 100 km apart?
- 1 hour
- 2 hours
- 3 hours
- 1.5 hours
Q2 · hard · AI-verified
A fighter jet covers a certain distance in 2 hours at 1200 km/h. How much time will it take to cover 3/4 of the same distance at 900 km/h?
- 1.5 hours
- 2.5 hours
- 2 hours
- 1.8 hours
Q3 · hard · AI-verified
A train travels from station A to station B at a speed of 60 km/h and returns from B to A at a speed of 40 km/h. If the total journey time is 5 hours, what is the distance between stations A and B?
- 120 km
- 100 km
- 150 km
- 180 km
Q4 · hard · AI-verified
A transport aircraft flying at 480 km/h takes 30 minutes more to cover a certain distance than a fighter jet flying at 720 km/h. What is the distance covered?
- 1440 km
- 1800 km
- 1680 km
- 1200 km
Q5 · hard · AI-verified
Two cars A and B start from the same point. Car A travels north at 60 km/h and car B travels east at 80 km/h. After how much time will they be 200 km apart?
- 1.5 hours
- 2 hours
- 2.5 hours
- 3 hours