The speed of a motor-boat is that of the current of water as 36:5. The boat goes along with the current in 5 hours 10 mi…

The average speed of a train is 20% less on the return journey than on onward journey. The train halts for half an hour …

Two trains start from stations A and B and travel towards each other at a speed of 50 kmph and 60 kmph respectively. A t…

A train travels at a speed of 30 km/hr for 12 minutes and at a speed of 45 km/hr for the next 8 minutes. The average spe…

A man can cross a downstream river by steamer in 40 minutes and same by boat in 1 hour. If the time of crossing Upstream…

If A travels to his school from his house at the speed of 3 km/h, then he reaches the school 5 minutes late. If he trave…

A walk at a uniform rate of 4 km an hour; and 4 hr after his start, B bicycles after him at the uniform rate of 10 km an…

A plane left half an hour later than the scheduled time and in order to reach its destination 1500 kilometers away in ti…