If a student walks from his house to school at 5 km/hr, he is late by 30 minutes. However, if he walks at 6 km/hr, he is late by 5 minutes only. The distance of his school from his house is.
How long (time in seconds) will a 450 metre long train take to cross a girl walking with a speed of 5 km/hr in the direction of the moving train. The speed of the train is 65 km/hr ?
A 222 metre long train crosses a pole in 6 seconds. The same train crosses a man running in the same direction in 10 seconds. What will be the speed of man ?
A can walk a certain distance in 10 days when he rests 9 hours a day. How long will he take to walk twice the distance, twice as fast and rest twice as long each day ?
A person leaves a place A to place B at 6 a.m. and reaches place B at 10 a.m. Another person leaves B at 7.30 a.m. and reaches A at 11 a.m. They will meet each other at
A can walk a certain distance in 20 days when he rests 8 hours a day. How long will he take to walk twice the distance, twice as fast and rests twice as long each day ?
There is a hill behind a person’s house. He walks up the top of the hill at a speed of 1$\frac{1}{2}$ km/hour, but walks down it at 4 $\frac{1}{2}$ km/ hour. If it takes him 6 hours for the entire journey, the distance, in km, from his house to the top of the hill is
