Question

A mirror image of a wall clock shows 2:45. What is the actual time?

• A. 9:15
• B. 2:45
• C. 10:15
• D. 11:15

Hint:

To find the actual time from a mirror image clock, subtract the mirror time from 12:00.

Answer 1

The Correct Option is C

Step 1: Understand mirror image time.
A mirror image reverses the clock, so the actual time and mirror time add up to 12:00.
Step 2: Calculate actual time.
Subtract the mirror time from 12:00: \[ 12:00 - 2:45 = 9:15 \] However, because the clock shows 2:45, the actual time corresponds to: \[ 12:00 - 2:45 = 9:15 \] But in mirror image clocks, the correct actual time is: \[ (11:60 - 2:45) = 9:15 \] This indicates the actual time is 9:15, but in practice, mirror images are calculated as \(12:00 - \text{mirror time}\).

Step 3: Final check.
The actual time is \(9:15\), which corresponds to option (1).