the first three digits of 6 digit number is 765.if roll number is divisible by 11,13 and 7,then last digit of roll number is

• last digit of roll number is 765...any 6 digiit number which in the form abcabc is divisible by 13,11&7.abcbac=abc*1000+abc=abc(1000+1)=abc*1001=abc*13*11*7.
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• 6 because (numbers in odd + numbers in even places) should be zero
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• LAST 3 DIGITS ARE 765... because there must be 2 repeat of 3 numbers to become divisible by 7,11,13
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