GATE 2016 EC (EC2) – Question 8

General Aptitude · Quantitative Aptitude: Data Interpretation, Arithmetic and Number Computation · 2 marks · Multiple choice

Two and a quarter hours ago, a numberless wall clock seen in a mirror appeared to show 1:30. What is the actual current time shown by the clock?

8:15
11:15
12:15
12:45

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Show answer and explanation

Correct answer: (D) 12:45

Explanation

For a normal analogue clock and its mirror, corresponding readings add to 12:00. A reflected 1:30 therefore means the actual earlier reading was 10:30.

Add two hours and fifteen minutes: 10:30+2:15=12:45. Thus the present clock reading is **12:45, D**.

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