document.write( "Question 1050730: Jack cycled from A to B at an average speed of 20km/h. He then cycled back from B to A at an average speed of 18km/h. If he took a total of 1 hour 35 minutes, find the distance between A and B? \n" ); document.write( "

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Jack cycled from A to B at an average speed of 20km/h. He then cycled back from B to A at an average speed of 18km/h. If he took a total of 1 hour 35 minutes, find the distance between A and B?\r
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\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Cycle
\n" ); document.write( "speed 20
\n" ); document.write( "time t
\n" ); document.write( "distance 20t\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "cycle back
\n" ); document.write( "speed 18
\n" ); document.write( "time 19/12-t
\n" ); document.write( "distance 18(19/12-t)\r
\n" ); document.write( "\n" ); document.write( "20t=18(19/12-t)
\n" ); document.write( "20t=(3*19)/2-18t
\n" ); document.write( "t=(3*19)/2\r
\n" ); document.write( "\n" ); document.write( "t= $\"57%2F76\"$ \r
\n" ); document.write( "\n" ); document.write( "now calculate the distance
\n" ); document.write( "20(57/76)=distance
\n" ); document.write( "15km=Distance \n" ); document.write( "

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