How many seconds did a watch lose per day if it lost 1 minute 18 seconds in 29 days?

To find out how many seconds the watch lost per day, first convert 1 minute 18 seconds into seconds: 1 minute is 60 seconds, so 1 minute 18 seconds equals 78 seconds. Next, divide the total loss by the number of days: 78 seconds ÷ 29 days = approximately 2.69 seconds per day. Therefore, the watch lost about 2.69 seconds each day.