Page 234 - Touchpad Mathematics_Ver1.0_C5

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

Learning LOGS

1. Complete the following table.

12-hour clock 24-hour clock 12-hour clock 24-hour clock
a. 7:22 p.m. __________ c. 8:05 a.m. __________
b. __________ 00:48 hours d. __________ 21:25 hours

2. What time will it be:
a. 3 h 35 min after 10:35 a.m.? b. 9 h 50 min after 5:45 p.m.?

c. 5 h 15 min after 23:50 hours? d. 1 h 45 min before 2:10 p.m.?
e. 4 h 35 min before 2:05 a.m.? f. 6 h 30 min before 12:20 hours?
3. Solve:

a. 42 h 24 min – 24 h 42 min b. 20 h 43 min + 4 h 27 min

c. 30 h 14 min + 8 h 29 min d. 35 h 42 min – 16 h 47 min
4. Add:

a. 7 years 8 months + 8 years 9 months b. 24 days 19 hours + 26 days 18 hours
5. Subtract:

a. 14 min 21 s – 8 min 32 s b. 22 days 8 h – 13 days 9 h
c. 50 years 3 months – 23 years 7 months
6. Manoj began studying at 5:20 p.m. He studied for 1 hour 50 minutes. At what time
did he finish studying?

7. A train leaves the station at 9:30 a.m. and reaches its destination at 6:45 a.m. the
next day. Find the duration of the journey.

8. A book fair began on 25th December. It lasted for 18 days. What was the last day of
the fair?

HOTS
21 st
Century #Computational Thinking
Skills

1. A clock gains 5 minutes in one hour and was set right at 8:00 a.m. What time will it show
at 8:00 p.m. on the same day? __________

2. The human heart beats 72 times per minute under normal conditions. Find out how many
times it beats in a day.

232 Mathematics 5