Bunuel wrote:

subhashghosh wrote:

Hi

Sorry, I made a typo error earlier. What I wanted to know is, how is "d" the numerator, please explain that.

Regards,

Subhash

time*rate=distance --> time=distance/rate --> in our case d is the distance between the buses, b-c is relative speed (rate) and 12 is the time needed for a bus to overtakes the cyclist, so: 12=d/(b-c).

Hope it's clear.

Hi Bunnel.

The way I understand your solution is that "d" is the distance from the cyclist to either bus (which means he is standing in the middle between the buses)....

Otherwise, how can you use "d" for both of the equations?

The distance of the cyclist from the oncoming bus is different from the passing bus....

Also, the cyclist is moving between the time when the buses pass....

I am sorry, I am having a little bit of trouble understanding....

If anyone can clarify.... Thanks!!!!