Question
Which branch of agriculture deals with principles and
practices of soil, water and crop management?Solution
Agronomy is the scientific study of principles and practices of soil, water and crop management.
A boat covers a distance of 900 metres upstream in 36 seconds and the same distance downstream in 24 seconds. Find the speed of the boat in still water.
- In a 25 km race, P, Q, and R are running at uniform speed. If ‘P’ beats ‘Q’ by 5 km, and ‘Q’ beats ‘R’ by 3 km, then by how many metres doe...
- In a 2 km race, 'X' allows 'Y' a lead of 400 metres, but still beats him by 200 metres. If 'Y' finishes the race in 20 minutes, how much time does 'X' take...
Ratio of speeds of ‘A’ and ‘B’ is 6:7, respectively. If they participate in a 140-metre race and ‘B’ gives ‘A’, a head start of ‘m’ ...
How much time a train 120 metres long running at the speed of 36 km/hr will take to cross a bridge 130 metres in length?
A bus takes 55 seconds to travel 550 meters. What is the speed in km per hour? Â
A person travels 150 km by car at a speed of 50 km/hr, 300 km by train at 60 km/hr, and 200 km by plane at 200 km/hr. Find the average speed of the enti...
- A car covers 162 km in 3 hours. The bike’s speed is 4 m/s less than the car’s. Find the distance (in metres) travelled by the bike in 3 minutes 30 seco...
A boy cycles from his school to home. Cycling at 12 km/h, he gets home 25 minutes late. But with a speed of (30/6) m/s, he reaches only 10 minutes late....
A cheetah can catch a deer running with a speed of 90 km/h and is 80 meters ahead of it, in 16 seconds. Find the time taken by the cheetah to catch a ze...
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