How many days are there from 2 January 1993 to 15 March 1993 (inclusive of both dates)?

Difficulty: Medium

Correct Answer: 73

Explanation:


Introduction / Context:
When counting days between two calendar dates, first decide whether the interval is inclusive or exclusive. Inclusive counting adds both endpoints; exclusive counting omits one or both ends. Here, we use inclusive counting as is common in aptitude calendars unless specified otherwise.


Given Data / Assumptions:

  • Year 1993 is a common (non-leap) year; February has 28 days.
  • Start date = 2 Jan 1993; End date = 15 Mar 1993.
  • We count inclusively (both 2 Jan and 15 Mar included).


Concept / Approach:
Sum days in each segment: from 2 Jan to 31 Jan, full February, and 1–15 March. Use month lengths for a common year.


Step-by-Step Solution:

January segment = 31 − 2 + 1 = 30 daysFebruary segment = 28 daysMarch segment = 15 daysTotal = 30 + 28 + 15 = 73 days


Verification / Alternative check:
Exclusive-of-start (i.e., counting from 3 Jan) would yield 72; since the problem intends inclusive, 73 is consistent with listed options and standard convention.


Why Other Options Are Wrong:
72 corresponds to excluding one endpoint; 74 and 71 miscount month lengths or inclusivity.


Common Pitfalls:
Forgetting inclusive counting or miscounting February as 29 days in a non-leap year.


Final Answer:
73.

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