Reasoning Ability - Calendar Problems
If 10th February 2015 was Tuesday, what day was 10th February 2020?
If 10th February 2015 was Tuesday, what day was 10th February 2020?
medium Q7 of 15
Step-by-Step Solution
Step 1: Years crossed
From 10 Feb 2015 → 10 Feb 2020 we cross 2015,2016,2017,2018,2019.Step 2: Odd-day contributions
2015=1, 2016=2, 2017=1, 2018=1, 2019=1 → total = 6 odd days.Step 3: Apply shift
Tuesday + 6 = Monday (equivalently −1 day).Final Answer:
Monday → Option CQuick Check:
6 days ahead = 1 day behind → Tuesday → Monday ✅
Quick Trick: Reduce total odd days mod 7 (6 ≡ −1) to simplify shifts.
Common Mistakes:
MISTAKES- Forgetting to include the +2 from leap years in the span.
Master "Calendar Problems" in Reasoning Ability
Start learning the concept with an interactive lesson.
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore Reasoning Ability Quizzes