Question

Is 2 hours and 30 minutes more or less than 10% of a day?

Answer 1

100% - 24h
x - 2,5 h


`x= (100*2,5)/(24) = (250)/(24)`≈10,4

ANSWER: More than 10% of day.

Answer 2

2 hours and 30 minutes is more than 10% of the day

Explanation:

First its necessary to identify the 10% of a day. This can be calculate using a rule of three knowing that a day have 24 hours and represent the 100% of the day, then how many hours represent the 10%. This is:

24h ---------------- 100%

x -----------------10%

where x is the number of hours that represent the 10% of the day. The value of x is:

`X=(24 * 10)/(100) = 2.4 hours`

Now, 2.4 hour is the sum of 2 hours and 0.4 hours, so we need to know how many minutes are 0.4 hours. This is calculate with a rule of three in which 1 hour have 60 minutes, then how many minutes have 0.4 hours. This is:

60 minutes ----------- 1 hour

y ------------ 0.4 hour

Where y is the number of minutes in 0.4 hour. The value of y is:

`y=(60*0.4)/(1) = 24 minutes`

So, 10% of a day is equivalent to 2 hours and 24 minutes.

Finally, 2 hours and 30 minutes is more than 2 hours and 24 minutes or 2 hours and 30 minutes is more than 10% of the day