document.write( "Question 628203: Two trucks left two towns A and B at the same time, and each was headed to the other town at a constant speed, passing each other at point C. The truck from town B completed the journey from C to A in 20 minutes. The truck from A completed the journey from A to C in 45 minutes, while maintaining its steady speed of 45 km/h. Find the speed of the truck from B in km/h, assuming that it maintains a constant speed throughout. \n" ); document.write( "
Algebra.Com's Answer #395457 by ankor@dixie-net.com(22740)\"\" \"About 
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Two trucks left two towns A and B at the same time, and each was headed to
\n" ); document.write( " the other town at a constant speed, passing each other at point C.
\n" ); document.write( " The truck from town B completed the journey from C to A in 20 minutes.
\n" ); document.write( " The truck from A completed the journey from A to C in 45 minutes, while
\n" ); document.write( " maintaining its steady speed of 45 km/h.
\n" ); document.write( "Find the speed of the truck from B in km/h, assuming that it maintains a constant speed throughout.
\n" ); document.write( ":
\n" ); document.write( "A <--------<20min<--------C----------------< B; truck from B\r
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\n" ); document.write( "\n" ); document.write( "A >-------->45min>-------C-----------------> B: truck from A (at 45km/h)
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\n" ); document.write( "Change 20 min to .33 hrs
\n" ); document.write( "Change 45 min to .75 hrs
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\n" ); document.write( "Since truck from A completed the distance from A to C in 45 min at 45 km/h,
\n" ); document.write( "dist from A to C: .75(45) = 33.75 km
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\n" ); document.write( "Find the speed of truck from B, which traveled from C to A in 20 min:
\n" ); document.write( "S = \"33.75%2F33\" = 101.25 km/hr
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