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Aptitude question on Calendar
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Which of the following day(s) can't be the 1st day of a century?
Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday. Justify your answer.
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Aug 7, 2018
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Balaji Jegan
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No. Of odd days in first century is 5 so las day of this century will be friday...first day of next century is SATURDAY
Similarly no. Of odd days in first 2 centuries is 3 so last day is wednesday......first day of next day century is THURSDAY
For the first 3 centuries no of odd days is 1 so last day is monday.....first day of next century is TUESDAY
for first 4 centuries no of odd days is 0...so last day is sunday....first day of next century is MONDAY
same will repeat for every 4 centuries
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Aug 8, 2018
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Priyanka Agarwal
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Aug 9, 2018
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Balaji Jegan
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Let $a$ be the root of the polynomial $f(x)$ of multiplicity 1. Then $a$ is a root of polynomial $((xa) / 2) (f’(x) + f’(a)) – f(x) +f(a)$ of multiplicity exactly 4 at least 4 at most 2 exactly 1
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