A watch lost 1 minute 18 seconds in 39 days. How many seconds did it lose per day?

Answer 1

To find out how many seconds the watch lost per day, we need to determine the total number of seconds it lost in 39 days first.

There are 60 seconds in a minute, so 1 minute 18 seconds is equal to 60 + 18 = <<1*60+18=78>>78 seconds.

In 39 days, the watch lost a total of 78 * 39 = <<78*39=3042>>3042 seconds.

To find out how many seconds it lost per day, we divide the total number of seconds lost by the number of days: 3042 / 39 = <<3042/39=78>>78 seconds.

Therefore, the watch lost 78 seconds per day.