Thomas has constant speeds for both running and walking. When a down-escalator is moving, Thomas can run down it in
15
seconds or walk down it in
30
seconds. One day, when the escalator was broken (and stationary), it took Thomas
20
seconds to run down it.

How long, in seconds, would it take Thomas to walk down the broken escalator?

Question

02-02-2021
Mathematics

Answered

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Thomas has constant speeds for both running and walking. When a down-escalator is moving, Thomas can run down it in
15
seconds or walk down it in
30
seconds. One day, when the escalator was broken (and stationary), it took Thomas
20
seconds to run down it.

How long, in seconds, would it take Thomas to walk down the broken escalator?

Sagot :

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