1.
A common year has how many days?
Correct Answer
B. 365 days
Explanation
A common year has 365 days. This is the standard length of a year in the Gregorian calendar, which is the most widely used calendar system in the world. It consists of 365 days divided into 12 months, with each month having varying lengths. The extra day that occurs every four years in a leap year is not considered part of a common year.
2.
How many weeks are in a year?
Correct Answer
D. 52
Explanation
There are 52 weeks in a year because each week consists of 7 days. So, multiplying 7 by 52 gives us a total of 364 days, which is the number of days in a non-leap year.
3.
Which years are leap years?
Correct Answer(s)
B. 2008
E. 2012
Explanation
Leap years occur every four years, with the exception of years that are divisible by 100 but not by 400. In this list, 2008 and 2012 are the only years that meet this criterion. Both 2008 and 2012 are divisible by 4 and are not divisible by 100, making them leap years. The other years listed (2007, 2010, 2011) do not meet the criteria and are not leap years.
4.
A leap year has how many days?
Correct Answer
C. 366
Explanation
A leap year has 366 days because it is a year that contains an extra day, February 29th. This additional day is added to keep the calendar year synchronized with the solar year, which is approximately 365.25 days long. By adding an extra day every four years, we account for the extra time it takes for the Earth to orbit the sun.
5.
In which month is in a leap year ONE day added?
Correct Answer
D. February
Explanation
In a leap year, which occurs every four years, an extra day is added to the month of February. This is because a leap year has 366 days instead of the usual 365 days. Therefore, the correct answer is February.
6.
One day has how many hours?
Correct Answer
D. 24
Explanation
A day consists of 24 hours. This is a universally accepted fact and is based on the Earth's rotation on its axis. The rotation takes approximately 24 hours to complete, resulting in a day being divided into 24 equal parts, each known as an hour. Therefore, the correct answer is 24.
7.
One week has how many hours?
Correct Answer
C. 168
Explanation
There are 7 days in a week and each day has 24 hours. To find the total number of hours in a week, we multiply 7 by 24, which equals 168. Therefore, the correct answer is 168.
8.
How many seconds are in one hour?
Correct Answer
C. 3600
Explanation
There are 3600 seconds in one hour. This is because there are 60 seconds in a minute and 60 minutes in an hour. Therefore, to find the total number of seconds in an hour, you multiply 60 by 60, which equals 3600.
9.
How much is 1 hour 40 min + 30 min
Correct Answer
B. 2 hours 10 min
Explanation
To find the total time, we add 1 hour 40 minutes and 30 minutes together. Since there are 60 minutes in an hour, we can convert 1 hour 40 minutes to 1 hour 60 minutes. Adding this to 30 minutes gives us a total of 2 hours 90 minutes. However, since there are 60 minutes in an hour, we can convert 90 minutes to 1 hour 30 minutes. Therefore, the total time is 2 hours 10 minutes.
10.
It is now 9:25amWhat will the time be in 3 hours and 55 minutes?
Correct Answer
B. 1:20pm
Explanation
In 3 hours and 55 minutes, the time will be 1:20pm. To calculate this, we add 3 hours to the current time, which gives us 12:25pm. Then we add 55 minutes to that, which brings us to 1:20pm.
11.
How many minutes are in a quarter of an hour?
Correct Answer
C. 15 min
Explanation
A quarter of an hour is equal to 15 minutes.
12.
What is the time in the 24 hour format at 3:25pm
Correct Answer
C. 15:25
Explanation
The correct answer is 15:25 because 3:25pm is equivalent to 15:25 in the 24-hour format. In the 24-hour format, the hours range from 00 to 23, with 00 representing midnight and 12 representing noon. Therefore, 3:25pm would be represented as 15:25 in the 24-hour format.
13.
What is the time in the 12 hour format at 18:55
Correct Answer
B. 6:55pm
Explanation
The given time is 18:55, which is in the 24-hour format. To convert it to the 12-hour format, we subtract 12 from the hour value if it is greater than 12. In this case, 18 is greater than 12, so we subtract 12 from it, resulting in 6. The minutes remain the same. Therefore, the time in the 12-hour format is 6:55pm.
14.
In which century are we now?
Correct Answer
B. 21st century
Explanation
We are currently in the 21st century. The 21st century began on January 1, 2001, and will end on December 31, 2100. It follows the 20th century, which spanned from 1901 to 2000. The 21st century is characterized by rapid technological advancements and significant societal changes.
15.
4,722 seconds are how many hours, minutes and seconds?
Correct Answer
B. 1 hour, 18 minutes and 42 seconds
Explanation
To convert 4,722 seconds into hours, we divide by 3,600 (the number of seconds in an hour) and get 1 hour. Then, we take the remaining seconds (1,122) and divide by 60 (the number of seconds in a minute) to find that it is equivalent to 18 minutes and 42 seconds. Therefore, the correct answer is 1 hour, 18 minutes, and 42 seconds.
16.
3,658 minutes are how many days, hours and minutes?
Correct Answer
C. 2 days, 12 hours and 58 minutes
Explanation
To convert 3,658 minutes into days, hours, and minutes, we divide the total number of minutes by the number of minutes in a day (24 hours x 60 minutes = 1,440 minutes). This gives us 2 days. Then, we take the remaining minutes (3,658 - 2 days x 1,440 minutes = 778 minutes) and divide it by the number of minutes in an hour (60 minutes). This gives us 12 hours. Finally, we have 778 - 12 hours x 60 minutes = 58 minutes left. Therefore, the correct answer is 2 days, 12 hours, and 58 minutes.