1.

it takes one minute for a passenger s†an ding on an escalator to reach the top.if the escalator does not move it takes him 3 min. to swalk up .How long will it take for the passenger to arrive at the top if he walks up the moving escalator?

Answer» it takes one minute for a passenger s†an ding on an escalator to reach the top.if the escalator does not move it takes him 3 min. to swalk up .How long will it take for the passenger to arrive at the top if he walks up the moving escalator?


Discussion

No Comment Found