Bill takes the underground train to work and uses an escalator at the railway station. If Bill runs up 6 steps of the escalator, then it takes him 82.5 seconds to reach the top of the escalator. If he runs up 14 steps of the escalator, then it takes him only 62.5 seconds to reach the top.
How many seconds would it take Bill to reach the top if he did not run up any steps of the escalator at all?
97.5 sec
ReplyDeleteIs it 97.5seconds?
ReplyDeleteYes 97.5 secs is correct !
ReplyDeleteI'm not even attempting that. :) I'm so bad at this. :D
ReplyDelete