CMAT 2014 Solved Question Paper

(d ) 1st January 1901 means = (1900 yr and 1 day)
Now, 1600 yr have 0 odd day
300 yr have 1 odd day
1 day has 1 odd day
Total number of odd days = 0 + 1 + 1 = 2 days
Therefore, the day on 1st January 1901 was Tuesday.