A clock is 8 minutes slow at 6 AM and 16 minutes fast at 6 PM. At what time (in AM) will it show the correct time?
Show answer & explanation
Correct answer: C
Explanation
In 12 hours, clock goes from 8 minutes slow to 16 minutes fast ⇒ total 24 minutes ⇒ 2 minutes per hour
Correct time occurs when error becomes 0 ⇒ time to recover 8 minutes = 8 ÷ 2 = 4 hours
6 AM + 4 hours = 10:00 AM
Correct Answer: 10:00