I had to calculate the number of odd days in 1600 years. I have read the answer to be equal to 0. But I don't get it to equal to 0.
This is the way I am calculating the number of odd days in 1600 years :
1600 years = 24 x 16 = 384 leap years (100 years = 24 leap years)
(because 100 years have 24 leap years)
1 leap year = 2 odd days (52 weeks + 2 odd days)
384 leap years = 384 x 2 = 768 odd days --(A)
1600 years = 1600 - 384 = 1216 ordinary years
1 ordinary year = 1 odd day (52 weeks + 1 odd day)
1216 ordinary years = 1216 x 1 = 1216 odd days--(B)
Total number of odd days = (A) + (B) = 768 + 1216 = 1984 odd days in 1600 years
and 1984 is not divisible by 7 !
Am I making a mistake ? If yes,what is it ?