Every day, Aimee goes up an escalator on her journey to work. If she stands still, it takes her 60 seconds to travel from the bottom to the top. One day the escalator was broken so she had to walk up it. This took her 90 seconds.
How many seconds would it take her to travel up the escalator if she walked up at the same speed as before while it was working?
Select one option, then click Submit.
30
32
36
45
75
Select an option, then submit.
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Intermediate Mathematical Challenge 2016 (2016)
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