Multiple choice

A clock which gains uniformly is 18 minutes slow at 7:25 p.m. on Monday. The clock would have shown the correct time at 00:00 hours, on Wednesday. How much does the clock gain per day?

  1. 12 minutes

  2. 14.5 minutes

  3. 16 minutes

  4. None of these

Reveal answer Fill a bubble to check yourself
D Correct answer
AI explanation

The time from 7:25 p.m. Monday to 00:00 hours Wednesday is 28 hours and 35 minutes. In this period, the clock must make up the 18-minute deficit to show the correct time, meaning it gains 18 minutes in 28 hours and 35 minutes. This uniform rate equals approximately 15.16 minutes gained per day, which does not match any of the provided numerical choices.