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\ 19-Nov-2025 Bharat Arora Proof-9 Reader’s Sign _______________________ Date __________

Prayagraj, Rome,
India Italy

Baghdad, Brasilia,
Iraq Brazil

Beijing, Cairo,
China Egypt

The 24-hour CloCk

We normally use the 12-hour clock to measure time. In some professions, such as
railways, shipping, defense forces, television networks and air services around the
world, 24-hour clocks are used.

218 Mathematics 5