It gained 15 minutes in 36 hours.
15/36 = x/24
36x = 360
x = 10 minutes
A clock was set on Monday at 8.30 a.m. On Tuesday, the following day, the clock showed 8.45 p.m. when the correct time was 8.30 p.m. How many minutes was the clock gaining in every 24 hours?
1 answer