If 9 engines consume 24 metric tonnes of coal, when each is working 8 hours a day; how much coal will be required for 8 engines, each running 13 hours a day, it being given that 3 engines of the former type consume as much as 4 engines of latter type.
Correct Answer : C
A man can row upstream at 8 kmph and downstream at 13 kmph.The speed of the stream is?
3 pumps, working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day?
Ramu and Somu are competing in a 100 m race. Initially, Ramu runs at twice Somu's speed for the first fifty metres. After the 50 m mark, Ramu runs at 1/4th his initial speed while Somu continues to run at his original speed. If Somu catches up with Ramu at a distance of 'x' metres from the finish line, then find x