If it was a Saturday on 10 November 2018, what was the day of the week on 15 August 2017?

Given, 10 November 2018 was Saturday

Number of days between 15 August 2017 and 15 August 2018 = 365 days

Number of days between 15 August 2018 and 10 November 2018 = 16 + 30 + 31 + 10 = 87 days

Number of days between 15 August 2017 and 10 November 2018 = 452 days

Number of odd days between 29 January 2003 and 26 February 2005 = Remainder of $$\frac{452}{7}$$ = 4

$$\therefore\ $$The day on 15 August 2017 = Saturday - 4 = Tuesday

Hence, the correct answer is Option B