Von Neumann was smarter than I thought

#1. Paris Problem
Someone has a better rate of problems like this on Neumann.
(You can try solving it too)
20 miles away, two people are riding a bicycle station.
They are heading towards each other at a speed of 0 miles per hour.
Jo A-il
*this
Ettatne Sadahi is a clear person.
A fly is flying between them at a speed of 15 miles per hour.
new liquid
If one of the two bicycles collides with it, the two bicycles change direction.
After endlessly going back and forth between names,
If two bikes collide, you will be crushed to death:
earthly
Why is it like this?
It’s so scary
‘Paraekine”‘
The total distance flown by a fly was
It’s a math problem
When Daebu hears this problem, he solves it like this:
X Caution
Elderly people, pregnant women, and people with blisters may feel depressed:
20
0 Until the first time you hit it, it flies
Moves all 5 miles
(05+10)
‘@=
20
20-
*20
20×5
@Then Wandering Wool Bagoon Panon
((J+lo)
XI5
(5 + 10)
(15+1)
Mineall is moving
=83~-n=
24
2r5
0After that, again
(UMO)
x5
*5
mile all
(15 +10)
(15+Io)?
=83-<=
If you add infinitely like this and use the infinite series formula,
Tiedsi 5 + Meaning 5 + Puksi 5 +
‘Pookchi 5-
ton
35
4*3**=15 (miles)
The answer is /5 miles
Sorry for the rough explanation, I will go into detail.
Grind what you don’t want to overthrow
But actually, there is an easier way to solve it.
0 Since the bikes are 20 miles away from each other and their speed is 0 miles per hour,
Crash after I hours
Because the wave flies at 5 miles per hour for
15 miles traveled
In this way, mass production can be completed without the need for complex calculations.
Let’s see if they came up with an easy way to solve infinite geometric series through hard work.
It’s a problem
*The explanation is over.
Let’s solve the problem and taste the correct answer.
sun
Paraga
Total moved mirrorium
15 miles
Ine
My surprised friend said this
and
This is a muhangdeung dump that I put on hold.
An easy way to solve a difficult problem
You figured it out.
It’s been said like this
‘easy
crime prevention
Is it there?
I’m Mudeungbaz
‘I’m pregnant’
@Cheongheup #PyoRun Tajeongji Parisnon 7 Yu”5 Ah, it’s boring
=8
5gg =
20-OX0
print
@That quarrel kka[ Bagun -da
Psalm 5
6″uh 5
‘Ma-8 Hit 92 *
UI5 + 10)
= Yongso
@=
P20
I’m here
@Then a again
(Charuo)’
I second
DR
U.S. Ho)
5-?’
It’s just mental math
=8 5gg=
@Hageon is used as the Muuli Deomae Muan 53 number formula.
Poomsi 5+
Writing poetry + book “5* “
Wind{5
U5io)*2o
2ox5
Mudmasa[-two