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  1. A boat which travels at 12 km/h relative to the water aims straight for the opposite bank of a 63.5 m wide river. If it reaches the opposite side 21.69 m downstream, what is the speed of the river?

    km/h

  2. A boat which travels at 9.2 km/h relative to the water aims straight for the opposite bank of a 8.7 m wide river. If it reaches the opposite side 4.066 m downstream, what is the speed of the river?

    km/h

  3. A boat which travels at 6.7 km/h relative to the water aims straight for the opposite bank of a 65.2 m wide river. If the average river speed is 5.3 km/h, how far downstream is the boat when it reaches the opposite side?

    m

  4. A boat which travels at 1.6 km/h relative to the water aims straight for the opposite bank of a river. If the average river speed is 3 km/h and the boat is 29.62 m downstream when it reaches the opposite side, how wide is the river?

    m

  5. A boat which travels at 1.8 km/h relative to the water aims straight for the opposite bank of a river. If the average river speed is 5.2 km/h and the boat is 131.7 m downstream when it reaches the opposite side, how wide is the river?

    m

  6. A boat which travels at 7.4 km/h relative to the water aims straight for the opposite bank of a river. If the average river speed is 3.6 km/h and the boat is 8.562 m downstream when it reaches the opposite side, how wide is the river?

    m