A clock shows 7:25. What time does its mirror image show?

Explanation

To find the mirror image of a clock time, subtract the displayed time from 11:60. Here, 11:60 - 7:25 = 4:35: subtracting the minutes gives 60 - 25 = 35, and subtracting the hours gives 11 - 7 = 4. The reflected dial reverses the left-right positions of the hands, so the mirror shows 4:35. A time such as 4:25 incorrectly keeps the original minutes, while 5:35 uses the wrong hour.

Why the other options are wrong

• (A) 5:35 has the reflected minute value but the hour is not obtained from 11:60 - 7:25.
• (C) 4:25 keeps the original minute value, while the mirror-time calculation changes 25 minutes to 35 minutes.
• (D) 5:25 keeps the original minute value and also gives an hour different from the 4 obtained by subtracting 7:25 from 11:60.

Concept

Clock mirror-image reasoning is a routine mental-ability pattern where candidates must convert the displayed time rather than visually guess the hands. It recurs in RAS-style reasoning because it checks speed, arithmetic control and attention to options.

Source

• Reference source

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