Question

How many seconds are there in 2 days
A. 172800s
B. 360600s
C. 725000s
D. 608000s

Answer 1

Hint: In the question, We are asked to convert time from one unit to another unit. Identify different conversion factors needed to convert the unit from days to hours, minutes and seconds..

Complete step-by-step answer:
We can express time in different units such as seconds, minutes, hours, days, months and years. One year contains three hundred and sixty-five days. One day contains twenty-four hours. One hour contains sixty minutes. One minute contains sixty seconds. Using these relationships, We can calculate the number of seconds in two days.

First calculate the number of hours present in two days
\[2{\text{ days }} \times {\text{ }}\dfrac{{{\text{24 hours}}}}{{{\text{1 day}}}}{\text{ = 48 hours}}\]
Now calculate the number of minutes present in forty-eight hours
\[{\text{48 hours }} \times {\text{ }}\dfrac{{{\text{60 minutes}}}}{{{\text{1 hour}}}}{\text{ = 2880 minutes}}\]

Now calculate the number of seconds present in two thousand eight hundred and eighty minutes
\[{\text{2880 minutes}} \times {\text{ }}\dfrac{{{\text{60 second}}}}{{{\text{1 minutes}}}}{\text{ = 1,72,800 seconds}}\] \[{\text{1,72,800 seconds}}\] are there in 2 days

Hence, the correct answer is option A.

Note: There is a concept that is related to year. It is a light year. It corresponds to the distance travelled by light in vacuum in one year. One light year is approximately six trillion miles.