A person reaches his destination 32 minutes late if his speed is 6 km/h, and reaches 18 minutes before time if his speed is 7 km/h. Find twice the distance (in km) of his destination from his starting point.
Two objects are moving on a circular path of length 600 m at a speed of 20 m/sec and 50 m/sec in the same direction. At how many point will both the objects meet on a circular path if they are continuously moving?
25 persons can complete a work in 60 days. They started the work. 10 persons left the work after x days. If the whole work was completed in 80 days, then what is the value of x ?