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Solve the following quiz (2=6, 3=12, 4=20 ....9=?)

+2 votes
4,337 views
posted May 1, 2014 by Amit Kumar Pandey

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2 Solutions

+2 votes

2*3=6
3*4=12
similarly
9*10=90

solution Dec 1, 2014 by anonymous
this can be true only if you add numbers to the puzzle.
no adding nothing you can solve it
9+9=18+42=60
6+6=12+30=40
+1 vote

The answer is 90.

And i used to solve this is a*(a+1)

solution Jan 28, 2016 by anonymous



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