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):
"If the bus goes at the rate of 50km/h, then it will arrive B 42min later than it had to."
Conclusion 1:


Statement (2):
"if it increases its speed 5.5/9 m/sec., it will arrive B 30min earlier."
Conclusion 2:



Conclusion 3, because of conclusion 1 and 2:


Therefore,

Now we want to find the distance between the two towns, so we say that:


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:
