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Q.

How many seconds is 3 hours 12 minutes?


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a

10521 seconds

b

10510 seconds

c

11520 seconds

d

10600 seconds 

answer is C.

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Detailed Solution

Given time is,
3hr 12min
In 1 hour, there are 60 min and in 1 minute there is 60 seconds. Thus, seconds in given time,
=3×60×60+12×60
=3600×3+720
=10800+720
=11,520 seconds
Thus,
3 hr 12 min=11,520 seconds
Correct option is 3.
 
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