100 Doors 2013 Walkthrough: Levels 71 to 80

Walkthrough for 100 Doors 2013!

Here is the Solution and Walkthrough for Doors 71 to 80 of 

"100 Doors 2013"

Your guide and inspiration to 100 Doors 2013

100 Doors 2013 Door 71

12,9,48,13,1,33,7

100 Doors 2013 Level 71 Solution:

Hint: Replace the question marks with the numbers above the door.

Hint2: Column 1 --> all the numbers are dividable by 4.

Hint3: Column 2 --> all the numbers are dividable by 3, excluding numbers dividable by 4.

Hint4: Column 3 -->  all these numbers are prime.

Answer:

Column1: 12, 48.   Add all the numbers from column 1 to get 176.

Column2: 9, 33.  Add all the numbers from column 2 to get 183

Column3: 13, 1, 7.  Add all the numbers from column 3 to get 54.

Use the keypad and type 176 183 54 to solve level 71.

100 Doors 2013 Door 72

100 Doors 2013 Level 72 Solution:
Take the crowbar
Take the screwdriver somewhat hidden below the crowbar.
Use the crowbar to open the electricity box
Use the screwdriver on the electricity box to get a key-card
Use the keypad and insert the key-card to solve level 72.



100 Doors 2013 Door 73
Code: 30,31,45,660

100 Doors 2013 Level 73 Solution:

Work out what the question marks will be around the circle:
1, 3, 5, 7
9, 12, 15, 18
2, 4, 6, 8
22, 23, 44, 55

To get 30 = 5 * 6
To get 31 = 22 + 9
To get 45 = 33 + 12
To get 660 = 44 * 15

(If it is a multiplication, then move the dial until the green line connects to 2 numbers
If it is an addition, then move the red line between the 2 numbers.
After each code, press the calculate button).

The door will open if you calculated all 4 correctly.

Level 73 solved!



100 Doors 2013 Door 74

100 Doors 2013 Level 74 Solution:

Turn clockwise about 14 times
Then anti-clockwise about 14 times.
Repeat until all 3 bars on the right and
all 3 bars on the left has moved.

Level 74 solved.



100 Doors 2013 Door 75
0001000011100

100 Doors 2013 Level 75 Solution:

Lots of zero's and one's
Hint: The 1's are making a pattern on the door, well, actually 4 patterns.

Cant see the patterns?  Divide the door into 4 quadrants and you will find a number in each.

Top-left = 1
Top-right = 2
Bottom-left = 7
Bottom-right = 5

Use keypad and solve this level with 1275



100 Doors 2013 Door 76
Famous people and their dates

100 Doors 2013 Level 76 Solution:

Top left = Thomas Edison. 85 Years.
Top- right = Mikhail Lomonosov. 54 Years.
Bottom left = Nikola Tesla. 87 Years.
Bottom-right = Albert Einstein. 76 Years.

Add the top 2 years: 84 + 54 = 138
Subtract the bottom 2: 87 - 76 = 11
Multiply the 2 numbers: 138 * 11 = 1518

Solve this door by using the keypad and entering 1518.



100 Doors 2013 Door 77
Flower Power

100 Doors 2013 Level 77 Solution:

This is a silly level :-(
Not sure what the purpose of the flowers are???  If you know, please leave a comment!
(Maybe there is another way to solve this door by using the flower-clock?)

To solve:
Move the clay pot to reveal a hidden button.
Press the button 4 times.
Door will open.

Level 77 solved.




100 Doors 2013 Door 78
dots

100 Doors 2013 Level 78 Solution:

Look at the pattern above the door and work it from left to right.
The 3 buttons on the side = top, middle, bottom.
If the pattern show 2 buttons on top of each other, then press the 2 buttons at the same time.

To solve:
Press top and bottom simultaneously.
Then:
middle, bottom, middle, top, middle bottom, middle
And finally,
Press top and bottom simultaneously.

Door will open and level 78 solved.




100 Doors 2013 Door 79

100 Doors 2013 Level 79 Solution:

Slide each circle from left to right and count the number of moves:

5
7
9
11

Use the keypad and solve door 79 with the code 57911



100 Doors 2013 Door 80
Purple room

100 Doors 2013 Level 80 Solution:

Slide the left door to the left. Hold it there and slide the what bar on
 the left downwards to keep the door open.
Ditto with the right-hand side.

Exit level 80!