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Sum Power Digit Determination (Posted on 2014-07-12) Difficulty: 3 of 5
Determine the last digit of:

12 + 23 + 34 + 45 + .......+ 20142015

No Solution Yet Submitted by K Sengupta    
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re: Shortcut solution erratum Comment 4 of 4 |
(In reply to Shortcut solution by Jer)

Your one-before-last sentence is WRONG , both grammatically (above,are,are,) and mathematically (15 terms  instead of 14, first zero redundant).

Please edit,

Both the method and the result are ok.


  Posted by Ady TZIDON on 2014-07-13 10:20:08
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