Logical Reasoning
mediumQ. No. 19667
The calendar printed for 2020 can next be reused without any date change in which year?
Last Updated:
A2021
B2022
C2048
D2023
Correct Answer: 2048Your Answer: C
Explanation
Correct answer: Option C — 2048. A reusable calendar requires the same weekday on 1 January and the same leap status. Checking successive years after 2020, the first year satisfying both conditions is 2048. Option A (2021) is rejected because it does not equal the computed result; it represents a counting, direction, leap-year, interval, or hand-motion error. Option B (2022) is rejected because it does not equal the computed result; it represents a counting, direction, leap-year, interval, or hand-motion error. Option D (2023) is rejected because it does not equal the computed result; it represents a counting, direction, leap-year, interval, or hand-motion error.
Important Notes
- Read the complete condition before calculating and write the required reference point, date, or clock time separately. This prevents a correct calculation from answering the reverse question.
- Keep units consistent. Reduce day differences modulo 7; treat 12 on a clock as zero for angle work; and convert gained or lost minutes into the same time unit as the stated interval.
- Check boundary cases explicitly: February, century years, noon, midnight, and an angle greater than 180 degrees often change the apparent answer. A century is a leap year only when divisible by 400.
- Verify the result independently. For calendar problems, move forward or backward by the remainder after division by