Question

What was the day of the week on 2${}^{nd}$ October, 2014?

• A. Thursday
• B. Friday
• C. Saturday
• D. Sunday

Answer 1

The correct option is A

Thursday

2${}^{nd}$ October, 2014 = (2013 years + Period from 1.1.2014 to 2.10.2014)

Odd days in 1600 years = 0

Odd days in 400 years = 0

13 years = (3 leap years + 10 ordinary years)

= (3 $\times$ 2 + 10 $\times$ 1) = 16 odd days$\equiv$ 2 odd days

Jan. to September + October

(31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 2) = 275 days

= (39 weeks + 2 days)$\equiv$ 2 odd days

Total number of odd days = (0 + 0 + 2 + 2) = 4$\equiv$ 4 odd days

Given day is Thursday.