document.write( "Question 954012: An aeroplane flies from A to B at a speed of 750km/h. On the returnn trip there was a strong tail wind and airplane flew at 900km/h. The return trip took 20min less than original. How many hours did the return trip take? \n" ); document.write( "

Algebra.Com's Answer #582713 by MathTherapy(10556) $\"\"$ $\"About$

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\n" ); document.write( "An aeroplane flies from A to B at a speed of 750km/h. On the returnn trip there was a strong tail wind and airplane flew at 900km/h. The return trip took 20min less than original. How many hours did the return trip take?
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Let time taken on return trip (B to A), be T
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document.write( "Then time taken on outbound trip (A to B) = , or 
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document.write( "We then get: 
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document.write( "750T + 250 = 900T
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document.write( "750T – 900T = - 250 
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document.write( "- 150T = - 250
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document.write( "T, or time taken on return trip = , or  hours \n" );
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