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E:\Working\Focus_Learning\Math_Genius_4_(25-10-2023)\Open_Files\Chap-12
\\December 6, 2023 11:48 AM Bharat Arora P-5 Reader _________________________ Date: ___________________

Let us observe the position of the second hand in the following given clocks.

12 12
12
12
12
11 11 12 12 1 1 11 11 12 12 1 1 11 12 1 1 11 11 12 12 1 1 11 11 12 12 1 1 11 11 12 1 1 1 11 12 1 1 1
11
11
11
11
10
10
10
10
10 10 2 2 10 10 2 2 10 2 2 10 10 2 2 10 10 2 2 10 10 2 2 2 10 2 2 2
9 9 3 3 9 9 3 3 9 9 3 3 9 9 3 3 9 9 3 3 9 9 9 3 3 3 9 9 9 3 3 3
8 8 4 4 8 8 4 4 8 8 4 4 8 8 4 4 8 8 4 4 8 8 8 4 4 4 8 8 8 4 4 4
7 7 6 6 5 5 7 7 6 6 5 5 7 7 6 6 5 5 7 7 6 6 5 5 7 7 6 6 5 5 7 7 7 6 6 6 5 5 5 7 7 7 6 6 6 5 5 5
0 seconds 5 seconds 10 seconds 15 seconds 20 seconds 25 seconds 30 seconds
12
12
12
12 1
11
11 11 12 12 1 1 1 11 12 1 1 11 12 1 1 11 12 1 11 12 1 11 12 1
12 1
11
11
11
11
10
10 10 2 2 2 10 2 2 10 2 2 10 2 2 10 2 10 2 2
10
10
10
10
9 9 9 3 3 3 9 9 3 3 9 9 3 3 9 9 3 3 9 3 9 9 3 3
8 8 8 4 4 4 8 8 4 4 8 8 4 4 8 8 4 4 8 4 8 8 4 4
7 7 7 6 6 6 5 5 5 7 7 6 6 5 5 7 7 6 6 5 5 7 7 6 6 5 5 7 6 5 7 7 6 6 5 5
60 seconds 55 seconds 50 seconds 45 seconds 40 seconds 35 seconds
To write the time in seconds we add one more sign (:) after the minutes and then
write seconds. For example,
11 12 1 11 12 1 11 12 1 11 12 1
10 2 10 2 10 2 10 2
9 3 10 seconds 9 3 20 seconds 9 3 30 seconds 9 3
later
later
later
8 4 8 4 8 4 8 4
7 6 5 7 6 5 7 6 5 7 6 5
7:20:00 7:20:10 7:20:30 7:21:00
7 hours 20 minutes 7 hours 20 minutes 7 hours 20 minutes 7 hours 21 minutes
and 0 seconds and 10 seconds and 30 seconds and 0 seconds
maths fun
Observe your activities and tick unit of time which takes to complete
it. Compare your answers with your friends.

1. Raising your hand (Minutes/Seconds)
2. Brushing your teeth (Minutes/Seconds)

3. Taking bath (Minutes/Seconds)
4. Getting ready for school (Minutes/Seconds)
5. Picking up the pencil from

your geometry box (Minutes/Seconds)

6. Taking one step forward (Minutes/Seconds)
7. Drinking water (Minutes/Seconds)
8. Clapping your hands once (Minutes/Seconds)

212 Mathematics-4