Question
Before servicing, a car runs at a speed of 35 km/hr
while after servicing, it runs at a speed of 70 km/h. After servicing the car covers a certain distance in 5 hours. How much time would the car have taken to cover the same distance when it was not serviced?Solution
After servicing, Distance covered by the car = 70 × 5 = 350 km Required time taken = 350/35 = 10 hours
Two trains, A and B, are moving in opposite directions at speeds of 45 km/h and 60 km/h, respectively. The lengths of the trains are 120 meters and 150 ...
Train A's speed is 25% less than that of Train B, and its length is half the length of Train B. Train A crosses a 400 m bridge in 36 seconds, while Trai...
A biker travels at a speed of 28 km/hr for 5 hours each day on all days except Sunday. If his journey starts on a Wednesday, on which day will he reach ...
Anju's journey comprises three segments. He travels the first 'd - 30' km at a speed of 12 km/h, the next 'd' km at a speed of 30 km/h, and finally, she...
- Two individuals, L and M, travel from point A to point B at different speeds. L takes 5 hours to complete the journey, while M takes 7 hours. The differenc...
Train P starts from Lucknow to Dehradun at 11:55 am with an average speed of 25 m/s. Train Q starts from Dehradun to Lucknow at 1:35 pm with an average ...
Two trains for Mumbai leave Delhi at 6 a.m. and 6:30 a.m. and travel at 100 km/h and 136 km/h respectively. Approx. how many km from Delhi will the two ...
Amit walks for 2 hours at a speed of 's' km/hr, and then his speed increases by 25 km/hr, covering the remaining distance in 3 hours. If Amit's speed ha...
A train travels 120 km at a speed of 60 km/h and then travels another 80 km at a speed of 40 km/h. What is the average speed for the entire journey?
A person walks at 5 km/h to reach the office on time. If the walking speed is increased to 6 km/h, the person will reach 10 minut...
Relevant for Exams:
