Kepler's third law states that the square of the orbital period of a planet is proportional to the cube of the semi-major axis of its orbit, establishing a relationship between the time a planet takes to orbit the Sun and its distance from the Sun.
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...
If a boy runs at the speed of 20 km/hr and crosses a bridge in 15 minutes, then what is the length of the bridge?
If a person walks 25% more than of his usual speed, reaches his distance 90 minutes before. If the destination is 217.5 km away, then the usual speed of...
B starts 4 minutes after A from the same point, for a place at a distance of 7 miles from the starting point. A on reaching the destination turns back a...
Train P starts from Lucknow to Dehradun at 11:55 am with an average speed of 45 m/s. Train Q starts from Dehradunto Lucknowat 1:35 pm with an average sp...
A and B move towards each other at the same time at the speeds of 15 km/h and 25 km/h, respectively and the distance between them is 60 km. How much is ...
Ram needs to travel from point A to point B. If he travels at a speed of 24 km/h, he arrives 2.5 hours later than expected. On the other hand, if he in...
A motorbike travelled for the first 180 km at a certain speed in 4 hours. After that, the speed of the motorbike decreased by 5 km/h. If the motorbike t...
Due to inclement weather, an airplane reduced its speed by 300km/h and reached the destination of 1200km late by 2 hours. Then the schedule duration of ...
Ravi must go from Hyderabad to Delhi. The distance between Hyderabad and Delhi is 1,500 km. He decides to travel 25% of the distance on foot, 30% of the...
