February 20, 1999 was on Saturday, what day of the week will be on December 30, 1997?

Options

A. (a) Monday
B. (b) Tuesday
C. (c) Friday
D. (d) Sunday

Explanation

The year during this interval was 1998 and it was not a leap year .Now, we calculate the number of odd days in 1999 uo to February 19:
January 1999 give 3 odd days
19 february 1999 give 5 odd days
1998, being ordinary year, gives 2 odd day
`therefore` total number of odd days=(3+5+1+1=)
days=4 odd days
Therefore, December 30, 1997 will fall 4 days before Saturday ie on Tuesday.