Bird
0
0

Which year will have the same calendar as 1999?

hard Q9 of 15
Reasoning Ability - Calendar Problems
Which year will have the same calendar as 1999?
A2010
B2011
C2012
D2013
Step-by-Step Solution
  1. Step 1: Identify type

    1999 is ordinary.
  2. Step 2: Count odd days for 1999→2010 (years 1999–2009)

    Leap years: 2000, 2004, 2008 → 3 leaps; ordinary = 8.
    Odd days = (8×1)+(3×2)=8+6=14 → 14 mod 7 = 0.
  3. Final Answer:

    2010 → Option A
  4. Quick Check:

    Odd days 14 ≡ 0 and both ordinary → calendars match ✅
Quick Trick: Ordinary year +11 is a common repeat when three leaps occur inside the interval.
Common Mistakes:
MISTAKES
  • Confusing 11- vs 12-year gaps for century-adjacent years.
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 Questions
More Reasoning Ability Quizzes