Question
Why does a large fire in the open appear to be fanned by
strong winds?Solution
A fire in the open seems fanned by winds because hot air rises and cooler air rushes in to replace it, intensifying the flames.
A person 'X' covered a distance of 'd+40' kilometers at a speed of 40 km/h, another distance of 'd' kilometers at a speed of 15 km/h, and a third distan...
A train takes 30 minutes to travel 20 km, but due to maintenance, its speed is reduced by 25% for the next 10 km. Find the total time taken by the train...
A train 'B' speeding with 100 kmph crosses another train C, running in the same direction, in 2 mins. If the length of the train B and C be 150m and 250...
Arjun left a bus stop at 14 m/s. Mohan started chasing him 7 seconds later and overtook him in 28 seconds. What speed was Mohan running at?
A car can finish a certain journey in 10 hours at a speed of 42 kmph. In order to cover the same distance in 7 hours, the speed of the car (km/h) must b...
Compare the rates of two trains, one travelling at 40 km an hour and the other at 30 m a second? Â
‘A’ and ‘B’ started moving towards each other at same time with a speed of 22 km/hr and 33 km/hr, respectively. If the distance covered by ‘A�...
Two motorcycles, a Honda and a Hero, set off simultaneously from the same location, aiming for the same endpoint. The Honda travels at a speed of 48 km/...
Speed of a car and a bus is 30 km/h and 18 km/h, respectively. If the time taken by the car to cover a distance of ‘8x’ km is 1 hour less than time ...
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