If 6 May 2005 is a Friday, then what will the day of the week on 25 September 2018?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. Tuesday.
Number of days from 6 May 2005 to 6 May 2018
Number of leap years: 3 (2008, 2012, 2016)
Number of normal years: 10
Total days from 6 May 2005 to 6 May 2018 = (10 × 365) + (3 × 366)
= 3650 + 1098 = 4748 days
Number of days from 6 May 20018 to 25 September 2018: 25 + 30 + 31 + 31 + 25 = 142
Total days from 6 May 2005 to 25 September 2018 = 4748 + 142 = 4890 days
Number of odd days = 4890/7 = 4 odd days
So, if 6 May 2005 is a Friday then on 25 September 2018 it will be Tuesday.
Hence, Tuesday is the correct answer.