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Message: <blockquote data-quote="lodperera" data-source="post: 605737" data-attributes="member: 8163">thats weird but guys i think i figured it out..u can only use 2 digits right? we'l take 11 for instance. u add them 1+1=2. and u substract it from the first no. 11-2=9..just like that suppose we take 15. 1+5=6. then 15-6=9..so 9 comes inevery instance when u take the first number of the two digits no as 1. for example we took 11 and 15..like wise if u take a number starting from 2, u will end up having the no 18 as the no for u should look at the pic. so there are only 10 possibilities and all are the gunakarayan of 9..thats how they do it.</blockquote>

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