Mathematics, 22.10.2020 18:01 aaivey9815
David watches Maria and Alma race electric trains around a track. Maria's train goes around the track in 10 seconds. Alma's train goes around the track in 12 seconds.
How long will it take for both trains to cross the finish line together the first time?
A
30 seconds
B
60 seconds
C
72 seconds
D
120 seconds
Answers: 2
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David watches Maria and Alma race electric trains around a track. Maria's train goes around the trac...
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