From two piers between which distance of 140 kilometers, at the same time towards the motor boat and the boat each other went and met in 2 hours. Speed of the boat is 45 kilometers per hour. Find the speed of the motor boat.

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Condition: Speed • time = Distance To. 45 km/h. 2 h □ km the General 2 h 140 km of M. of l. Km/h. 2 h □ Resheniye's km: 1) 45•2=90 (km) - boat Distance. 2) 140-90=50 (km) - distance of the motor boat. 3) 50÷2=25 (km/h.) - there was a motor boat. Answer: Speed of the motor boat is 25 km/h. Let X - the speed of the motor boat (45 + X) * 2 = 140 km 90+2X = 140 2X = 140 - 90 = 50 X = 50:2=25 km/h - the speed of the motor boat
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