In covering a distance of 60 km, A takes 2 hours more than B. If A doubles his speed, then he would take 1 hour less than B. A's speed is:	Choose the correct choice from the following:  A) 5 km/h  B) 8 km/h  C) 10 km/h  D) 15 km/h  E) 20 km/h
Let A's speed be X km/hr.   Then, 60/x - 60/2x = 3   30/x = 3   x = 10 km/hr.   Answer : 10 km/h
<result>C</result>
In covering a distance of 60 km, A takes 2 hours more than B. If A doubles his speed, then he would take 1 hour less than B. A's speed is: