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Calendar
            We have seen different kinds of calendars in the market like wall calendars, desk calendars,
            etc. They may look different but contain the same information.

              •  There are 7 days in a week. They are
                  Monday, Tuesday, Wednesday, Thursday,
                  Friday, Saturday and Sunday.
              •  There are 52 weeks and 1 day in a year.

              •  There are 365 days in a year.
              •  There are 12 months in a year. They are
                  January, February, March, April, May,
                  June, July, August, September, October,

                  November and December. Each month
                  has four weeks and a few days.
              •  We need the day, month and year to write
                  a date. The most common way of writing
                  a  date  follows  the  pattern—day,  month
                  and year. For example, 7 November 2017,
                  7.11.2017, 7.11.17, 7/11/2017 and 7/11/17.


            Leap Year

            A year in which February has 29 days instead of 28 days is called a leap year. It occurs
            every four years. For example, 2000, 2004, 2008, 2012 and 2016 were leap years.

            Thus, we can say that a leap year has 52 weeks and 2 days, i.e., 366 days with February
            having 29 days.




                      Exercise 8.4




              1.  Fill in the blanks.
                    (a)  Monday comes before _____________.

                   (b)  Starting from Monday, the fourth day of the week is _____________.
                    (c)  The fifth month of the year is _____________.
                   (d)  If the last month was September, the next month will be _____________.

                    (e)  If tomorrow is Sunday, yesterday was _____________.
                    (f)  Two  months  which  consecutively  have  31  days  are  _____________  and
                        _____________.

                    (g)  If today is 31 July, tomorrow will be  _____________.
                   (h)  Two months after October is _____________.

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