SSC CGL Reasoning – Calendar & Clock – Level 3 · Challenge
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365 = 52 weeks + 1: the year has 53 Mondays, so 31 December is Monday and the next year starts on Tuesday.
SSC CGL Reasoning – Calendar & Clock – Level 3 · Challenge – 8 questions, subject: General Intelligence & Reasoning. Every question has the correct answer with a one-line explanation; tap "Show Answer". Free practice for TNPSC, UPSC, SSC, Bank and RRB exams – Shanmugam IAS Academy, Coimbatore.
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1.
How many times are the hands of a clock at right angles between 1 p.m. and 7 p.m.?
Correct Answer: A [11]
Explanation:
Two right angles every hour except 2–3 o'clock, which has only one (its second one is exactly 3:00, counted in the next hour) → 2 × 6 − 1 = 11.
2.
Assertion–Reason
A: The calendar of the year 2000 is repeated in 2028.
R: A leap year repeats its calendar after 28 years when no non-leap century year falls in between.
A: The calendar of the year 2000 is repeated in 2028.
R: A leap year repeats its calendar after 28 years when no non-leap century year falls in between.
Correct Answer: B [Both A and R are true and R explains A]
Explanation:
2000 and 2028 are both leap and both start on Saturday; R is the 28-year rule that gives A.
3.
A watch gains 5 minutes every hour. It is set right at 12 noon on a Monday. When will it next show the correct time?
Correct Answer: D [12 noon on the following Sunday]
Explanation:
It must gain 12 h = 720 min: 720 ÷ 5 = 144 h = 6 days → Monday + 6 days = Sunday, 12 noon.
4.
1 January 2001 was a Monday. What day of the week will 1 January 2101 be?
Correct Answer: C [Saturday]
Explanation:
2001–2100 has 24 leap years (2100 is not leap) → 124 odd days → 5 → Monday + 5 = Saturday.
5.
In a leap year, 1 March is a Friday. What day of the week was 1 February of that year?
Correct Answer: A [Thursday]
Explanation:
February of a leap year has 29 days = 4 weeks + 1 → go back 1 day: Thursday.
6.
Statement-basedWhich pairs of years have identical calendars?
I. 2015 and 2026 II. 2024 and 2052 III. 2090 and 2101
I. 2015 and 2026 II. 2024 and 2052 III. 2090 and 2101
Correct Answer: B [Only I and II]
Explanation:
2015→2026 (+11) and 2024→2052 (+28) work; 2090 + 11 crosses 2100 (not leap), so 2101 starts on a different day.
7.
At what time between 5 and 6 o'clock are the hands of a clock at right angles for the second time?
Correct Answer: D [43⁷⁄₁₁ min past 5]
Explanation:
M = (60H ± 180)/11 = (300 − 180)/11 = 10¹⁰⁄₁₁ and (300 + 180)/11 = 43⁷⁄₁₁ → second time 43⁷⁄₁₁ min past 5.
8.
1 January of an ordinary (non-leap) year is a Monday. On which days do 31 December of that year and 1 January of the next year fall?
Correct Answer: B [Monday and Tuesday]
Explanation:
365 = 52 weeks + 1: the year has 53 Mondays, so 31 December is Monday and the next year starts on Tuesday.
➤ Full notes, shortcuts and every answer explained – SSC CGL 2026 General Intelligence & Reasoning book (₹149): www.shanmugamiasacademy.in/study-materials/ssc-cgl-general-intelligence-reasoning
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