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Years, Months, Weeks and Days Video Lecture | Mathematics for Class 4 (Maths Mela: New NCERT)

FAQs on Years, Months, Weeks and Days Video Lecture - Mathematics for Class 4 (Maths Mela: New NCERT)

1. What are the basic units of measuring time in years, months, weeks, and days?
Ans. The basic units of measuring time include years, months, weeks, and days. A year typically consists of 12 months, a month can have either 28, 30, or 31 days, a week contains 7 days, and a day is made up of 24 hours.
2. How many days are there in a month, and why do some months have different numbers of days?
Ans. Most months have either 30 or 31 days, while February usually has 28 days, except in a leap year when it has 29 days. The variation in the number of days in different months is due to historical calendar changes and the need to align the calendar year with the solar year.
3. How do you calculate the number of days between two dates?
Ans. To calculate the number of days between two dates, you can count the total days in each month between the two dates, including both start and end dates. Alternatively, you can use a calendar or a date calculator to find the difference easily.
4. What is the difference between a leap year and a common year?
Ans. A leap year has 366 days, which includes an extra day in February (29 days instead of 28), while a common year has 365 days. Leap years occur every four years to help synchronize the calendar year with the astronomical year.
5. How can I convert weeks to days and vice versa?
Ans. To convert weeks to days, simply multiply the number of weeks by 7, as there are 7 days in a week. Conversely, to convert days to weeks, divide the number of days by 7. For example, 2 weeks is 14 days, and 14 days is 2 weeks.
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