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A boat which travels at 5.4 km/h relative to the water aims straight for the opposite bank of a river. If the average river speed is 8.7 km/h and the boat is 77.01 m downstream when it reaches the opposite side, how wide is the river?

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A boat which travels at 7.9 km/h relative to the water aims straight for the opposite bank of a river. If the average river speed is 2.9 km/h and the boat is 3.01 m downstream when it reaches the opposite side, how wide is the river?

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A boat which travels at 4 km/h relative to the water aims straight for the opposite bank of a river. If the average river speed is 4.9 km/h and the boat is 125.3 m downstream when it reaches the opposite side, how wide is the river?

m

A boat which travels at 11.7 km/h relative to the water aims straight for the opposite bank of a river. If the average river speed is 8.1 km/h and the boat is 22.84 m downstream when it reaches the opposite side, how wide is the river?

m

A boat which travels at 6 km/h relative to the water aims straight for the opposite bank of a river. If the average river speed is 7.5 km/h and the boat is 18.75 m downstream when it reaches the opposite side, how wide is the river?

m

A boat which travels at 7 km/h relative to the water aims straight for the opposite bank of a river. If the average river speed is 9.5 km/h and the boat is 116.5 m downstream when it reaches the opposite side, how wide is the river?

m