11+2

Number Theory Level 2

In a special case,
10+4=2,
1+10=11,
11+1=12,
Then 11+2=?


The answer is 1.

Siva Prasad by Siva Prasad , 20, India

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2 solutions

Siva Prasad
Apr 25, 2014

The number added here are in clock.

2 Helpful 0 Interesting 0 Brilliant 0 Confused
Hemel Sarkar
Sep 2, 2014

From the question we can write that 10+4=2 so we can say 4=-8 and 11+2=9+4=9-8=1

0 Helpful 0 Interesting 0 Brilliant 0 Confused

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