# How many kilometers will a motor ship travel in 6 hours, moving against the river flow

September 20, 2021 | education

| **How many kilometers will a motor ship travel in 6 hours, moving against the river flow, if its own speed is 21 km / h, and the current speed is 2/35 of the boat’s own speed?**

In 6 hours the ship will pass upstream

6 • (21000 – 21000: 35 • 2) = 6 • (21000 – 1200) = 6 • 19800 = 118,800 (m) = 118.8 (km).

Answer: 118.8 km.

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