A clock seen through a mirror shows 7 : 45. What is the correct time shown by the clock?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 4:15
A mirror turns the clock face round the line from 12 to 6, so each hand appears as far on the other side of the 12 as it really is. That is why the real time and the time seen in the mirror always add up to 12:00, and the real time is 11:60 minus the time seen.
Real time \(=\) 11:60 − 7:45 \(=\) 4:15 (60 − 45 = 15 minutes, 11 − 7 = 4 hours)
