Asked by SARAH

Please help!
Pedro and Alice raced two model trains along two straight tracks.
Pedro's train travelled 7.5 cm every minute. Alice's train travelled 7.5 cm every second.
How many centimeters had Alice's train travelled when Pedro's train had travelled 2.75 metres?

Thank You
Answered by Reiny
Pedro's rate = 7.5 cm/min = 450 cm/s
time for Pedro's train to go 275 cm = 275/450 s
= 11/18 seconds

so in that time Alices slow train went
(11/18)(7.5) = 55/12 cm
or appr 4.58 cm
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