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Mollisols are the soils of grassland ecosystems. They are characterized by a thick, dark surface horizon. This fertile surface horizon, known as a mollic epipedon, results from the long-term addition of organic materials derived from plant roots Mollisols are among some of the most important and productive agricultural soils in the world and are extensively used for this purpose
260 metre long train ‘A’ can cross a platform of length 180 metres in 16 seconds. If the speed of train ‘B’ is 6 m/s more than that of train ‘...
Two trains, A and B, start from two stations 240 km apart at the same time. Train A travels at 60 km/h and Train B travels at 40 km/h. After how much ti...
In a 500-metre race, ‘A’ beats ‘B’ by 15 seconds or 75 metres. Find the time taken by ‘B’ to finish the race.
A motor-cycle covers 60 km with a speed of 20 km/hr. find the speed of the motor-cycle for the next 60 km journey so that the average speed of the whole...
A car starts from point A and travels at a speed of 60 km/h for the first 2 hours, then increases its speed to 80 km/h for the next 3 hours. After that,...
A aeroplane covers a distance of 7200 km in 80 hours. What is the speed (in kmph) of the aeroplane?
If the sum of upstream and downstream speed is 32 km/hr and the speed of the current is 6 km/hr. Then find time taken to cover 44 km in downward?
A person traveled 140 km in 3 hours. For the first 2 hours, he traveled at 60 km/h. What was his speed during the last hour?
Average speed of ‘A’ during a 24-hour journey is 40 km/h. If he covered the first 150 km of his journey at a speed of 25 km/h, then find the speed a...
A boy goes to school at 4 km/Hr and return at a speed of 3 km/hr. If he takes 7 hrs in all. Find the distance from his village to school?