Question

There are 86,400 seconds in a day . How many days long is a second ? Express your answer in scientific notion upto 3 decimal places .

Answer 1

1 second = 1/60 of a minute

1 minute = 1/60 of an hour, so
1 second = (1/60) * (1/60) of an hour = 1/3600 of an hour

1 hour = 1/24 of a day, so
1 second = 1/3600 of an hour = (1/3600) * (1/24) of a day = 1 / 86400 of a day = .0000115 days long is one second