Question (17/53)
A man covered a certain distance at some speed. Had he moved 3 km/hr faster, he would have taken 40 minutes less. If he had moved 2 km/hr slower, he would have taken 40 minutes more. What is distance he covered ?(A) 30 km
(B) 35 km
(C) 40 km
(D) 45 km
Question (18/53)
Robert is travelling on his cycle and has calculated to reach point A at 2:00 PM if he travels at 10 km/hr speed. He will reach there at 12:00 noon if he travels at 15 km/hr speed. At what speed must he travel to reach point A at 1:00 PM ?(A) 8 km/hr
(B) 11 km/hr
(C) 12 km/hr
(D) 14 km/hr