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E:\Working\Focus_Learning\Math_Genius_3_(11-09-2024)\Open_Files\CHAP_10
\ 11-Sep-2024 Surender Prajapati Proof-5 Reader’s Sign _______________________ Date __________

(d) It takes about a .............. to tie your shoelaces.

(e) It takes about 5 .............. to cook noodles.

(f) You should sleep 8 .............. .

Between time (Before and after)

‘Tom and Jerry’ is the favourite cartoon show of Anju.

11 12 1 Anju starts watching the show at 7:15 p.m. It is a 10 11 12 1 2
10 2 9 3
9 3 1 hour longer show. When will it end?
8 4 8 7 5 4
7 6 5 The time after one hour is 6

7:15 p.m. + 1 hour = 8:15 p.m.

So, the show will end at 8:15 p.m.
11 12 1
10 2 Garima went shopping with her mother at 11:45 a.m. on last Sunday. They
9 3 woke up 3 hours earlier. When did they wake up?
8 4 11 12 1
7 6 5 10 2
The time before three hours is 9 3

11:45 a.m. – 3 hours = 8:45 a.m. 8 7 6 5 4

So, they woke up at 8:45 a.m.

The amount of time from the starting time of an event to the finishing (ending) time of

the event is called the elapsed time.

12 12
11 1 11 1
10 2 Starting 10 2 Finishing
9 3 9 3
8 4 time 8 4 time
7 6 5 7 6 5

Shweta started playing making puzzles at 4:30 p.m. She stopped playing at 6:55 p.m. For

how long did she play? She played for 3 hours 25 minutes.

11 12 1 11 12 1 11 12 1 11 12 1
10 2 1 h 10 2 1 h 10 2 25 min 10 2
9 3 9 3 9 3 9 3
8 4 8 4 8 4 8 4
7 6 5 7 6 5 7 6 5 7 6 5
4:30 p.m. 5:30 p.m. 6:30 p.m. 6:55 p.m.

182 Mathematics-3