Simply add.

Level pending

If

  1. 3+6=9
  2. 5+3=8
  3. 1+2=3
  4. 7+8=3
  5. 8+9=5
  6. 11+11=??

What is the sum?

You can try My Other Problems .


The answer is 10.

Astro Enthusiast by Astro Enthusiast , 24, Philippines

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10 solutions

Val Irvin Mabayo
Jun 22, 2014

use the clock when you add. :)

29 Helpful 0 Interesting 0 Brilliant 0 Confused

Good Stuff :)

Nikhil Tandon - 6 years, 10 months ago

Base 12, then?

Joeie Christian Santana - 6 years, 8 months ago

That's great....! :)

Siva Prasad - 6 years, 10 months ago
Figel Ilham
Jun 23, 2014

modular

3+6 = 9 (mod 12) = 9 5+3 = 8 (mod 12) = 8 1+2 = 3 (mod 12) = 3 7+8 = 15 (mod 12) = 3 8+9 = 17 (mod 12) = 5 11 + 11 =22 (mod 12) = 10

7 Helpful 0 Interesting 0 Brilliant 0 Confused

What is 12+12?

Drbalu Subrahmanya - 6 years, 11 months ago

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0 (mod 12)

Figel Ilham - 6 years, 10 months ago
Shadab Ahamed
Jun 25, 2014

Its some what like this

1=1; 2=2; 3=3; 4=4; 5=5; 6=6; 7=1; 8=2; 9=3; 10=4; 11=5; 12=6 and so on........

4 Helpful 0 Interesting 0 Brilliant 0 Confused
Deva Raj
Jun 22, 2014

7+8=15-12=3 8+9=17-12=5 similarly 11+11=22-12=10

3 Helpful 0 Interesting 0 Brilliant 0 Confused

It's modulo addition of 12

Karthick Sago - 6 years, 11 months ago

Bad idea already tried not a gud one

Anubhav Tyagi - 6 years, 11 months ago
Sahil Gohan
Jun 25, 2014

it repeats after 6...so 7=1 and 8=2 and 9=3 and 10=4 and 11=5

2 Helpful 0 Interesting 0 Brilliant 0 Confused
Lucca Vidal
Jun 22, 2014

It's the remainder when the numbers are divided by 12.

1 Helpful 0 Interesting 0 Brilliant 0 Confused

I thought of it as adding hours to a clock. :D

Vamsi Saladi - 6 years, 11 months ago

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That's actually the right answer. :)

Astro Enthusiast - 6 years, 11 months ago

why we use mode 12,from where we have got this

Fahad Arman - 6 years, 11 months ago
Noel Lo
Apr 27, 2015

If the answer is greater than or equal to 12, divide it by 12 and take its remainder.

0 Helpful 0 Interesting 0 Brilliant 0 Confused
William Lockhart
Oct 6, 2014

c=a+b mod 12

0 Helpful 0 Interesting 0 Brilliant 0 Confused
Aravind Vishnu
Jul 9, 2014

it is an addition modulo 12 operation

0 Helpful 0 Interesting 0 Brilliant 0 Confused
Daniel Lim
Jun 25, 2014

Find the sum then mod 12

0 Helpful 0 Interesting 0 Brilliant 0 Confused

what is mod 12 :)

nikko ayad - 6 years, 11 months ago

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remainder when the number is divided by 12 ;)

Astro Enthusiast - 6 years, 11 months ago

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