It depends on the 11-14 year old. For example my little sister(11) manages to read a book a day while my younger brother (just turned 13) doesn't so much as pick up a book let alone read it.
a fifteen year old should be able to do atleast 110 sit ups in two minutes.
1 day = 1440 minutes 1 year = 525600 minutes 5 years = 2628000 minutes (should be:D)
Zero.
There are 525,948.766 minutes in a year.
There are 525,600 minutes in a normal year and 527,040 minutes in a leap year.
One year is 525,960 minutes.
One year is about 525,949 minutes.
There are 525949 minutes in a year. This is used in math.
525,600 Minutes in one year.
It depends on what type of books and how busy they are with other activities. By 13 years a child should be reading fairly large and complex novels which will take quite a while to read. If they read for 30 - 60 minutes per day outside school and are fluent and confident readers it doesn't matter how many books they get through
525,600 minutes
52,560,000 minutes.