Can you believe a mathematician can’t complete 1 mile distance even after taking infinite time. It’s very interesting to know, after all why does this happen?
When you
think practically, it seems like humor. As you all know mathematics is very
interesting subject. That all, which is practically possible in this world, is
also possible in mathematics and which is impossible practically, is possible in mathematics.
To understand
paradox mentioned above, lets consider an example.
Suppose there
is a boy named John who wants to travel 1 mile. Now you would be thinking is
there any rocket science in travelling 1 mile distance? You are right, of course
there is no rocket science.
Then why, John
can’t travel 1 mile even in infinite time?
Before travelling,
there is a condition which must have to be fulfilled by John.
Condition is
as follows
Mathematically
you can understand this as:
John has been
given distance of 1 mile. According to condition, John must have to travel half
of the distance.
So, distance
travelled by john in first time would be
Total distance / 2 = 1 / 2 = 0.5
mile
Now consider second condition: John must have to always travel half of the remaining distance.
So,
Remaining distance =
total distance - travelled distance
= 1 –
0.5
= 0.5
mile
Now distance travelled
by John in second time would be
Remaining
distance/ 2 = 0.5 / 2 = 0.25 mile
So,
Remaining distance = total distance - total travelled
distance
= 1 – ( 0.5 + 0.25)
= 1- ( 0.75)
= 0.25 mile
Now John would travel in third time
Remaining distance / 2 = 0.25 / 2 = 0.125 mile
So,
Remaining distance =
total distance - total travelled distance
= 1 – ( 0.5 + 0.25 + 0.125 )
= 1 – ( 0.875)
= 0.125 mile
Now John would travel in
fourth time
Remaining
distance / 2 = 0.125 / 2 = 0.0625 mile
So,
Remaining distance = total distance – total travelled
distance
= 1 – ( 0.5 + 0.25 + 0.125 + 0.0625 )
= 1 – ( 0.9375
)
= 0.0625 mile
Now John would travel
in fifth time
Remaining
distance / 2 = 0.0625 / 2 = 0.03125 mile
So,
Remaining distant =
total distance - total travelled distance
= 1 – ( 0.5 + 0.25 + 0.125 +
0.0625 + 0.03125 )
= 1 – ( 0.96875 )
= 0.03125 mile
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Continue in this way,
on and on.
Now, lets see how much
distance John has travelled so far
John travelled total
distance in 1st time = 0.5 mile
John travelled total
distance in 2nd time = 0.75 mile
John travelled total
distance in 3rd time = 0.875 mile
John travelled total
distance in 4th time = 0.93755 mile
John travelled total
distance in 5th time = 0.96875 mile
John travelled total
distance in 6th time = 0.984375 mile
John travelled total
distance in 7th time = 0.9921875 mile
John travelled total
distance in 8th time = 0.99609375 mile
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After continuing in
this way you can see John is not reaching exactly at B, although he is reaching
approximately at B.
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