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The World of Computer Software
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World_Of_Computer_Software-02-386-Vol-2of3.iso
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cat0301.zip
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TEST.QSX
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TEST.QSN
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Text File
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1991-12-18
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565b
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14 lines
i:$distance:100*random+100
i:$rate:50*random+10
q:Two trains are $distance miles apart to begin, and are moving toward
q:each other at $rate miles per hour. In how many hours will they collide?
a:$distance / $rate
e1:1
e21:After one hour they will have travelled $rate miles.
e22:After one hour they will be $distance - $rate miles apart.
h:Each hour they close the distance between themselves by $rate miles.
h:After one hour their separation is $distance - $rate.
h:After two hours, their separation is $distance - 2 x $rate, etc..
End of question