explanation step by step.........
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❇The last of century cannot be Tuesday ,Thursday and Friday❇
•100years have 5 odd days ;
✴Last day of first century=Friday
•200 years = (5x 2)=10days=1week+ 3odd days
✴Last day of second century= Wednesday
•300years =( 5 x 3 ) = 15days =2weeks+1 odd day
✴Last day of third century =Monday
•400 years =(5x 4)= 0 odd day
✴Last day of fourth century =Sunday
•°• Cycle is repeated for more years
So ,remaining days were the answers .
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