A girl was born on September 6, 1970, which happened to be a Sunday. Her birthday again fell on Sunday in the year
A
1975
B
1976
C
1977
D
1981
Correct Option - D
Explaination
No. of odd days should be a multiple of 7.
No. of odd days from 1970-1975
1+2+1+1+1 = 6
1970-1976
8
1970-1977
9
1970-1981
1+2+1+1+1+2+1+1+1+2+1 = 14
Her birthday falls on Sunday in the year 1981.