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# Math puzzles!! can you solve this?

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 Jiju Oommen BSc. Math, CA Final [ Scorecard : 1808] Posted On 02 June 2012 at 17:23 Can you solve this riddle? If: 8809 = 6 7111 = 0 2172 = 0 6666 = 4 1111 = 0 3213 = 0 7662 = 2 9312 = 1 0000 = 4 2222 = 0 3333 = 0 5555 = 0 8193 = 3 8096 = 5 7777 = 0 9999 = 4 7756 = 1 6855 = 3 9881 = 5 5531 = 0 Then, 2581 = ? Rahul CA [ Scorecard : 33] Posted On 02 June 2012 at 17:46 If: 8809 = 6 7111 = 0 2172 = 0 6666 = 4 1111 = 0 3213 = 0 7662 = 2 9312 = 1 0000 = 4 2222 = 0 3333 = 0 5555 = 0 8193 = 3 8096 = 5 7777 = 0 9999 = 4 7756 = 1 6855 = 3 9881 = 5 5531 = 0 Then, 2581 = 2 Total thanks : 1 times leeladhar apprentice [ Scorecard : 256] Posted On 02 June 2012 at 18:17 Answer is '2' Total thanks : 1 times RaGHuRaM :-) The Easy are never Good and the Good are never Easy.... [ Scorecard : 4879] Posted On 02 June 2012 at 18:43 Answer is 2....... From the above, since 0000 = 4.....so value of 0 = 1 1111 = 0....so value of 1 = 0 2222 = 0....so value of 2 = 0 5555 = 0....so value of 5 = 0 9999 = 4....so value of 9 = 1 8809 = 6.....0 and 9 makes 2.....value of two 8s is 4......so value of 8 = 2 So, value of 2581 = 0 + 0 + 2 + 0 = 2 Anyhow instead of doing this we can take the value of number based on the number of circles in that number...... Total thanks : 1 times RaGHuRaM :-) The Easy are never Good and the Good are never Easy.... [ Scorecard : 4879] Posted On 02 June 2012 at 18:52 Second way of doing it.......... In the above series 2581 is the 21st number....... the difference between 7th and 6th number is 7662 [ 2 ] - 3213 [ 0 ] = 2 the difference between 14th and 13th number is 8096 [ 5 ] - 8193 [ 3 ] = 2 Going with sequence......The difference between 21st and 20th number should be 2 So, 2581 [ X ] - 5531 [ 0 ] = 2. ......So value of  2581 = 2..... Total thanks : 1 times vijay CA FINAL [ Scorecard : 649] Posted On 04 June 2012 at 13:39 After a long struggle got the answer Answer is 2   Total thanks : 1 times

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