Mathematics, 17.10.2021 17:10 abrannan00pdw6ab
A lift is at the 40 feet above the ground and rising at a speed of 10ft/s. At the same time another lift is at 160 feet and descending at 10ft/s. How long does it take for the two lifts to reach the same height?
t = 10
t = 6
t = 60
t = 20
Answers: 2
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