Kajal and Rajendra start running from the same place at the rate of 7.6 kmph and 7.85 kmph respectively. What time in hours will they take to be 13.5 km apart, if they run in the same direction?
13.5/(7.85-7.6)=54 hrs (if they can run this long :))
A train 120 meters in length travels at 70 km/h. In what time (approximately) will it pass the man who is walking at 7 km/h in the same direction?
A car can travels 450 km in 4 hours. If the speed is decreased by 15 1/2 kmph, how much time does the car take to cover a distance of 873 km?
A man starts to run along a particular direction with a speed of 54 km/hr. After running upto a distance of 100 m, he increases his speed by 50% of the initial speed, and runs upto 200 m. What will be the total time taken by the man?
A and B take part in a 200 m race. A run at 5.4 km/hr. A gives B a start of 12 m and still beat him by 6 sec. What is the speed of B?
A man can row a boat at 25/9 meters per second in still water and the speed of the stream is 8 kmph. What is the time taken (in hours) to row a distance of 90 km down the stream?
