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\ 16-Feb-2024 Bharat Arora Proof-6 Reader’s Sign _______________________ Date __________

Let us understand it through the calendar of the year 2025.
2025 CALendAr

January February March April
Su M t W th F Sa Su M t W th F Sa Su M t W th F Sa Su M t W th F Sa
1 2 3 4 1 30 31 1 1 2 3 4 5
5 6 7 8 9 10 11 2 3 4 5 6 7 8 2 3 4 5 6 7 8 6 7 8 9 10 11 12
12 13 14 15 16 17 18 9 10 11 12 13 14 15 9 10 11 12 13 14 15 13 14 15 16 17 18 19
19 20 21 22 23 24 25 16 17 18 19 20 21 22 16 17 18 19 20 21 22 20 21 22 23 24 25 26
26 27 28 29 30 31 23 24 25 26 27 28 23 24 25 26 27 28 29 27 28 29 30
May June July August
Su M t W th F Sa Su M t W th F Sa Su M t W th F Sa Su M t W th F Sa
1 2 3 1 2 3 4 5 6 7 1 2 3 4 5 31 1 2
4 5 6 7 8 9 10 8 9 10 11 12 13 14 6 7 8 9 10 11 12 3 4 5 6 7 8 9
11 12 13 14 15 16 17 15 16 17 18 19 20 21 13 14 15 16 17 18 19 10 11 12 13 14 15 16
18 19 10 21 22 23 24 22 23 24 25 26 27 28 20 21 22 23 24 25 26 17 18 19 20 21 22 23
25 26 27 28 29 30 31 29 30 27 28 29 30 31 24 25 26 27 28 29 30
September October november december

Su M t W th F Sa Su M t W th F Sa Su M t W th F Sa Su M t W th F Sa
1 2 3 4 5 6 1 2 3 4 30 1 1 2 3 4 5 6
7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8 7 8 9 10 11 12 13
14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15 14 15 16 17 18 19 20
21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22 21 22 23 24 25 26 27
28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29 28 29 30 31
Observe that:

There are 12 months in a year. January is Knowledge Desk
the first month and december is the last
month. The earth revolves around the sun taking
time about 365 days and 6 hours which is
There are 7 months which have 31 days known as a year. In four years, the extra
each and 4 months which have 30 days 6 hours each make 6 × 4 = 24 hours. That
each. is why, a day is added in the month of
February is the shortest month of the year February and thus, a leap year has 366
days.
with 28. Once in 4 years, February has
29 days. Such a year is known as a leap year.

A year has 365 days.

Quick Check Think and Answer
1. Name the months which have 1. If the present month is
exactly 30 days. July, last month was ________ and

2. Name the months which have the next month will be ________.
exactly 31 days. 2. Is the year 2024 a leap year? _______

teacher’s
tip Demonstrate how to know the number of days in a month of the year using the nucleus
and grooves on hands.

178 Mathematics-2