document.write( "Question 1208: A road cyclist travels 120 miles with the wind in 3 hours and 120 miles against the wind in 5 hours. Find the speed of the wind. \n" ); document.write( "
Algebra.Com's Answer #364 by khwang(438)![]() ![]() ![]() You can put this solution on YOUR website! Assume the speed of the wind to be x miles/hr and the speed of the cyclist \n" ); document.write( " to be y. \n" ); document.write( " With the wind, the combined speed is x+y, x + y = 120/3 = 40 ...(1) \n" ); document.write( " Against the wind, the (reduced)speed is x-y, x - y = 120/5 = 24 ...(2)\r \n" ); document.write( "\n" ); document.write( " By (1)-(2),we have 2y = 16, so y = 8 miles/hr\r \n" ); document.write( "\n" ); document.write( " Answer: the speed of the wind is 8 miles per hr \n" ); document.write( " |