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\\December 6, 2023 11:48 AM Bharat Arora P-5 Reader _________________________ Date: ___________________

(c) Since, 1 hour = 60 minutes

So, 4 hours = 4 × 60 minutes = 240 minutes
So, 4 hours 18 minutes = 240 minutes + 18 minutes

= 258 minutes
(d) Since, 1 hour = 60 minutes and 1 minutes = 60 seconds

So, 1 hour = 60 × 60 seconds = 3600 seconds

So, 2 hours = 2 × 3600 seconds = 7200 seconds

And 15 minutes = 15 × 60 seconds = 900 seconds

So, 2 hours 15 minutes 18 seconds = 7200 seconds + 900 seconds + 18
seconds = 8118 seconds.

Š To convert seconds into minutes, divide seconds by 60.

Š To convert minutes into hours, divide minutes by 60. Note
example 2: Convert the following: To find the number of
hours in given seconds,
(a) 360 seconds into minutes. we divide the seconds by

(b) 1210 seconds into minutes and seconds. 60 to find the number of
minutes, and further we
(c) 512 minutes into hour and minutes. divide by 60 to find the
number of hours.
(d) 4800 seconds into hours, minutes and seconds.

Solution: 60 360 6 minutes

(a) Since, 60 seconds = 1 minute 360
00
So, 360 seconds = (360 ÷ 60) minutes

= 6 minutes 60 1210 20 minutes
120
(b) Since, 60 seconds = 1 minute 10 Seconds
So, 1210 seconds = (1210 ÷ 60) minutes

= 20 minutes and 10 seconds 60 512 8 hours
480
(c) Since, 60 minutes = 1 hour 32 minutes

So, 512 minutes = (512 ÷ 60) hours

= 8 hours 32 minutes 60 4800 80 minutes
480
(d) Since, 4800 seconds = (4800 ÷ 60) minutes 00 seconds

= 80 minutes
60 80 1 hour
Further, 80 minutes = (80 ÷ 60) hours 60

Thus, 4800 seconds = 1 hour 20 minutes 0 seconds 20 minutes

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