Delhi Police Constable 2009 Paper

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Question : 55 of 100

Marks: +1, -0

The average of 4 hours, 30 minutes and 42 seconds is:

5238 seconds
4492 seconds
5414 seconds
4620 seconds

Solution:

4 hours

= 4 × 60 × 60 = 14400

sec.
30 min =

30 × 60 = 1800

sec.
Required average

={14400+1800+42}/3

=16242/3=5415

sec.

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