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Two cyclists, 81 miles apart, start riding toward each other at the same time. One cycles 2 times as fast as the other. If they meet 3 hours later, what is the speed (in mi/h) of the faster cyclist?. Write an equation using the information as it is given above that can be solved to answer this problem. Use the variable r to represent the speed of the slower cyclist.b. What is the speed of the faster cyclist?mi/hr |
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Answer» Given : Two cyclists, 81 miles APART, START RIDING toward each other at the same time. One cycles 2 TIMES as fast as the other. They meet 3 hours later, To Find : what is the speed (in mi/h) of the faster cyclist Solution: speed of the slower cyclist. = R mi/hr speed of the faster cyclist. = 2r mi/hr riding toward each other Hence effective speed = r + 2r = 3r mi/hr Distance = Speed * Time => 81 = 3r * 3 => r = 9 and 2r = 18 speed of the slower cyclist. = 9 mi/hr speed of the faster cyclist. = 18 mi/hr Learn More: Two trains start traveling on same track from Mumbai and Pune at ... two scooter riders moving in opposite direction start at the same time ... |
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