document.write( "Question 532217: a bus trevels at a distance of 90 km in 2h and another 30 km in 1h. what is the average speed of the bus?
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Algebra.Com's Answer #350723 by stanbon(75887)\"\" \"About 
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a bus trevels at a distance of
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\n" ); document.write( "Average speed = total distance/total time = 120km/3hr = 40 km/hr
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