Лаг1989 задача №1.2

Motorboat, moving against the current of the river, drew level with a raft in paragraph A. 30 minutes after meeting the boat turned back and caught up with the raft in the village. What is the distance between points A and B, if the flow rate of the river 3,5 km / h, and the speed of the boat through the water is constant.

Thank you for your purchase. If you have any questions, please contact us by e-mail (see. "Seller Information")