A bus travelling at 99 km/h completes a journey in 14 hours. At what speed will it have to cover the same distance in 18 hours?
77 km/h
To solve the problem of determining the speed at which a bus must travel to complete the same distance in 18 hours, we can follow these steps:
Step 1: Determine the total distance.
We know the initial speed of the bus is 99 km/h and it completes the journey in 14 hours. Thus, we can calculate the total distance using the formula:
Distance = Speed × Time
Distance = 99 km/h × 14 h = 1386 km
Step 2: Calculate the required speed for 18 hours.
To find the speed required to cover the same distance in 18 hours, we can rearrange the distance formula:
Speed = Distance ÷ Time
Speed = 1386 km ÷ 18 h ≈ 77 km/h
Conclusion:
The bus must travel at approximately 77 km/h to complete the journey in 18 hours. Therefore, the correct answer is 77 km/h.
Important Questions from Speed Time and Distance
A journey of 900 km is completed in 11 h. If two-fifth of the journey is completed at the speed of 60 km/h, at what speed (in km/h) is the remaining journey completed?
A car starts from point A towards point B, travelling at the speed of 20 km/h. 1 \(\frac{1}{2}\) hours later, another car starts from point A and travelling at the speed of 30 km/h and reaches 2 \(\frac{1}{2}\) hours before the first car. Find the distance between A and B.
A bus covered a distance of 162 km. If speed of this bus is 15 m/s, then what will be the time taken ?
An athlete runs an 800 m race in 96 seconds. His speed (in km / h) is:
A person has to cover a distance of 150 km in 15 hours. If he traveled with the speed of 11.8 km/hr for 10 hours. At what speed he has to travel to cover the remaining distance in the remaining time?
