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A car from a to B, an average of 20 kilometers per hour. To B after the speed of 30 kilometers per hour to return to a, a round trip, a total of 7.5 hours
If the time taken to go is x hours, then the time taken to return is 7.5-x hours
A car from a to B, 45 kilometers per hour, 65 hours to reach. If the speed is increased by 20%, how many hours to reach?
45 × 65 ^ [45 × (1 + 20%)], = 45 × 65 ^ [45 × 1.2], = 45 × 65 ^ 54, = 1 (hour); answer: you can get there in 1 hour
A car from a to B, 45 kilometers per hour, 5 / 6 hours to reach. If the speed is increased by 20%, how many hours can it reach?
A car from a to B, 45 kilometers per hour, 6 / 5 hours to arrive. How many hours can we get there?
Requirement: 45 × 5 / 6 △ [45 × (1 + 20%)] = 25 / 36 hours
A car from a to B, 45 kilometers per hour, 65 hours to reach. If the speed is increased by 20%, how many hours to reach?
45 × 65 ^ [45 × (1 + 20%)], = 45 × 65 ^ [45 × 1.2], = 45 × 65 ^ 54, = 1 (hour); answer: you can get there in 1 hour
RELATED INFORMATIONS
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- 2. The average speed of a car travelling between AB and ab is 45 kilometers per hour when it goes and 30 kilometers per hour when it comes back?
- 3. It takes 8 hours and 45 minutes to get the distance between a and B
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- 8. Car a travels 95 kilometers per hour, car B travels 75 kilometers per hour, starts at the same time, and meets in 3.2 hours. How long is the road?
- 9. A car at 45 kilometers per hour from a to B, 3 hours a journey of 57, how many kilometers does the car have to travel to reach B?
- 10. A car from a to B, 3 hours travel distance and the whole ratio is 1:3, if another 45 kilometers, just to reach the midpoint of a and B, a and B how many kilometers apart?
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- 13. The distance between a and B is 325 kilometers. A car leaves at 9:30 a.m. and arrives at its destination at 2:30 p.m. how many kilometers does it travel per hour?
- 14. A car from a to B, an average of 20 kilometers per hour. To B after the speed of 30 kilometers per hour to return to a, a round trip, a total of 7.5 hours
- 15. A car travels 80 kilometers per hour from a to B, and 75 kilometers per hour when it returns. It takes 9.3 hours from a to B to return to a How many meters is the distance between earth and earth B
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