Mathematics, 16.02.2021 22:00 lekylawhite16

During a training exercise, a submarine travels 16 km/h on the surface of the water and 10 km/h underwater. If the submarine travelled a distance of 160 km in 12.5 hours, how
long was it underwater?

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During a training exercise, a submarine travels 16 km/h on the surface of the water and 10 km/h und...