Question

Bob set his wall clock at 8:00 AM and noticed that the clock gained 10 minutes every 12 hours. On the third day, he decided to reset the clock again at 8:00 AM. If the clock indicates 12 PM on the 4th day, what will the true time be? Note: Select the time in hours and minutes

Answer 1

Answer:

Solution: Explanation Option [b] is correct. Number of hrs from 8:00 a.m. to 1:00 p.m. on the following day = 29 hrs. Since, the clock gains 10 minute in 24 hrs. ... So, 29 hrs of the clock =6×29×2445=18 hrs.

Answer 2

Given:

 clock gained 10 minutes every 12 hours

To Find :

what will the true time be?

Solution:

Given that at 8:00 AM, he noticed that the clock gained 10 minutes every 12 hours

Then for every 24 hours it gains 20 minutes

on the second day 8:00 AM the clock would have gained 20 minutes.

If On the third day, he decided to reset the clock again at 8:00 AM

On the fourth day 8:00 AM the clock have gained 20 minutes

so, if the clock indicates 12 PM then the true time will be 12: 20 PM