The Logic Defined:1 Minute=t, (a unit of time)
Time (By schedule)=nt, (n>0), nt=number of minutes
Metre(s)=m
Speed=s (in metres per minute), s=[distance in metres]/[time in minutes]
Distance=d (in metres), d=[speed in metres per minute]*[time in minutes]
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Statement (1):
<em>"</em><span><span><em>If the bus goes at the rate of 50km/h, then it will arrive B 42min later than it had to."</em>
</span>Conclusion 1:
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Statement (2):
<em>"</em></span><em>if it increases </em><span><em>its speed 5.5/9 m/sec., it will arrive B 30min earlier."
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Conclusion 2:
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Conclusion 3, because of conclusion 1 and 2:
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Therefore,
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Now we want to find the distance between the two towns, so we say that:
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So now you want to know how fast the bus has to travel to get to its destination on time...
Use the formula: s=d/t
Therefore: