Multiple choice

A clock gets fast by 15 minutes every day. If the clock shows the correct time at 12 O’clock at the noon, what time will the clock show at 4 O’clock in the morning?

  1. 4.15 O’clock

  2. 4.10 O’clock

  3. 4.12 O’clock

  4. 4.20 O’clock

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Clock gains 15 min per 24 hours. From noon to 4am is 16 hours. Proportionally: (15/24) × 16 = 10 minutes gained. Clock shows 4:10 when actual time is 4:00.