What day of the week was 1 february 1901?

• 1900=(1600-0 odd days,300-1 odd days)
  jan+feb=31+1,
  32/7= 4 odd days
  total=5 odd days
  ANS=FRIDAY
  
  
  
• 11 years agoHelpfull: Yes(9) No(1)
• 1 Feb 1901 = (1900 years + 31-jan-1901 + 1-Feb-1901)
  
  
  We know that number of odd days in 400 years = 0
  
  Hence the number of odd days in 1600 years = 0 (Since 1600 is a perfect multiple of 400)
  
  
  Number of odd days in the period 1601-1900
  
  = Number of odd days in 300 years
  
  = 5 x 3 = 15 = 1
  
  (As we can reduce perfect multiples of 7 from odd days without affecting anything)
  
  
  1-Feb-1901 = 31+1 = 32 (divided by 7 ) and remaining = 4 odd day
  
  
  Total number of odd days = (0 + 1 + 4) = 5
  
  5 odd days = Friday
  
  
  Hence 1 February 1901 is Friday.
• 11 years agoHelpfull: Yes(2) No(0)
• 1901->1600+300+01
  1600->0
  300->1
  01->1 so 3 odd days...ans tuesday
• 11 years agoHelpfull: Yes(0) No(6)
• 1900=1600+300
  1600-0odd days
  300-4odd days
  jan+feb=4odd days
  total=8 or 1odd days
  so monday
• 11 years agoHelpfull: Yes(0) No(3)