Basic HTML Version

|  | Table of Contents |  | View Full Version

Page 187 - Touchpad Mathematics_Ver1.0_C4
P. 187

    E:\Working\Orange_Education\TouchPad_Maths_4\Open_Files\Chap_11\Chap_11
                     \ 10-Nov-2025  Bharat Arora   Proof-8                                    Reader’s Sign _______________________ Date __________

                    Kittu: Ok mother, but after 12 midnight it is 1:00 a.m.
                    and in the 24-hour clock, this is equal to 25:00.                                     Tips

                    Mother: First tell me, in the 12-hour clock after 12, is
                    it 13 o’clock?                                                      The 24-hour clock does not use
                    Kittu: No, it’s 1 o’clock.                                          a.m. or p.m. to show the time.

                    Mother: Yes, similarly in the 24-hour clock, after 24, we again start with 1.

                    Kittu: Oh! It’s so much fun to convert to 24-hour clock time.

                    example 1.  Convert the following into the 24-hour format.
                                 a.  8:42 p.m.                                b.  12:31 a.m.

                    Solution.  a.  8:42 p.m. = 20:42 hours                    b.  12:31 a.m. = 00:31 hours

                    example 2.  Convert the following into the 12-hour format.
                                 a.  15:36 hours                              b.  06:47 hours

                    Solution.  a.  15:36 hours = 3:36 p.m.                    b.  06:47 hours = 06:47 a.m.

                                Exercise 11C

                        1.  match the following to show the same time.
                           a.  2:15 p.m.                                      i.  15:03 hours

                           b.  10:42 p.m.                                    ii.  09:10 hours
                           c.  3:03 p.m.                                    iii.  14:15 hours
                           d.  9:10 a.m.                                    iv.  22:42 hours

                           e.  7:15 a.m.                                     v.  19:15 hours
                           f.  7:15 p.m.                                    vi.  07:15 hours
                       2.  Convert the following into the 24-hour format.

                           a.  3:34 a.m.      ________  b.  4:50 p.m.  ________  c.  7:30 p.m.                  ________
                           d.  10:00 a.m.  ________  e.  12 midnight ________  f.  6:34 p.m.                    ________

                       3.  Convert the following into the 12-hour format.

                           a.  16:20 ________              b.  18:57 ________              c.  20:20            ________
                           d.  04:30 ________              e.  22:00 ________              f.  08:08            ________

                       4.  Rewrite the following statements using the 12-hour clock:

                           a.  Rachna had dinner at 19:45                 b.  A bus leaves Delhi at 13:30
                           c.  Anand left home at 11:25                   d.  Golu reached Agra at 20:10
                           e.  A hawker starts distributing newspapers at 06:35

                                                                                                                 185
                                                                                                        Time

| 182 183 184 185 186 187 188 189 190 191 192 |