Bunuel wrote:
At 12:10 o'clock Bill leaves point A towards point B at a speed of 30 Km/h. At 13:40 o'clock Richi leaves from the same point towards point B also, but at a speed of 60 Km/h. At what time will Richi passes over Bill?
A. 14:40.
B. 15:10.
C. 16:10.
D. 15:40.
E. 15:30
R leaves 1.5 hrs after B. And, in these 1.5 hrs B will cover 45 Kms distance.
Relative speed= 60-30= 30 Km/hr (since both are walking in same direction)
Time that they will meet= 45/30 = 1.5 hrs after Richi started.
13:40 +1:30= 15:10
B is the answer
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