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The Irish Potato Famine, also known as the Great Hunger, began in 1845 when a mold known as Phytophthora infestans (or P. infestans) caused a destructive plant disease that spread rapidly throughout Ireland.
A train crosses a man in 12 seconds and a platform 480 meters long in 36 seconds. Calculate the time (in seconds) it takes for the train to overtake a b...
An athlete running at three-quarters of her average speed takes 25 minutes extra than her usual time to finish a marathon. Find her usual time to finish...
A train would take 20 seconds to cross a stationary pole. If the train was 200m shorter, it would have taken 10 seconds less. Find the speed of the train.
A car running with a speed of 65 km/hr takes 12 hours to go from 'A' to 'B'. If on the way back from 'B' to 'A', the car takes 20% less time than it tak...
A and B move towards each other at the same time at the speeds of 15 km/h and 25 km/h, respectively and the distance between them is 60 km. How much is ...
A train is travelling at the rate of 72 km/hr. How many seconds it will take to cover a distance of 2/5 km?
Car' A' travels at the speed of 65 km/hr and reaches its destination in 8 hours. Car 'B' travels at the speed of 70 km/hr and reaches its destination in...
A driver of truck sees an ambulance 160 meters ahead of him. After 20 seconds the ambulance is 140 meters behind. If the speed of the truck is 80 kmp/h,...
If a man covers a distance in 1 hour, walking at a speed of 5 km/hr, how long will it take him to cover 15 km?
A car completes a journey in 6 hrs with a speed of 50 km/hr. At what speed must it travel to complete the journey in 5 hrs?