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March 30, 2015

Homework Help: Math help please

Posted by Abhishek kumar sahi on Thursday, August 4, 2011 at 10:28am.

Show that one and only one out of n,n+4,n+8,n+12,n+16 is divisible by 5,where n is any positive integer. A two digit number is obtained by either multiplying the sum of the digits by 8 and then subtracting 5 or by multiplying the differences of the digits by 16 and then adding 3.help me immediately.

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