MAH LLB 3 Year CET 2 April Shift-2 2026
My watch, which gains uniformly, is 2 minutes late at noon on Wednesday. It is 4 m 48 seconds fast at 2 PM on the following Wednesday. When was it correct?
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Answer: Option C — 2 PM on Friday
Detailed Solution
Time from noon Wednesday to 2 PM the next Wednesday hours.
Total gain min min 48 s min 48 s min in 170 hours.
The watch is correct once it has gained 2 minutes: time hours after noon Wednesday, which is 2 PM on Friday.
✓ Check
In 50 hours it gains minutes, cancelling the 2 minutes it was slow.⚠ Common trap
(B) 2 PM Thursday is only 26 hours after noon Wednesday; by then the watch has gained min, so it is still about 1 minute slow.Quick tip
Correct after h from noon Wed, i.e. Fri 2 PM.
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Ask a doubtMore Clocks Questions
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- Q5.What is the angle between the hour hand and the minute hand of a clock at 4:20?
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Clocks — Preparation
This question tests your understanding of Clocks, a key topic in the Logical Reasoning section. The detailed solution above uses a step-by-step approach to show the reasoning, and where available, a shortcut that helps you solve similar questions in under 90 seconds during the actual exam.
Clock questions ask about the angle between the hour and minute hands at a given time, or the times at which the hands are together, opposite each other or at right angles. The key facts are that the minute hand moves 6 degrees per minute and the hour hand moves 0.5 degrees per minute, so the minute hand gains 5.5 degrees on the hour hand every minute. The angle between the hands at H hours and M minutes is |30H - 5.5M| degrees. In 12 hours, the hands coincide 11 times, are opposite 11 times, and are at right angles 22 times. The topic also covers faulty clocks that gain or lose time, and mirror images of clocks. Learning these few formulas turns most clock questions into short calculations. Practise the clock questions below, each with a step-by-step solution.