Question

add 7hours 12minutes 19seconds and 15hours 8minutes 54seconds​

Answer 1

Answer: 22hrs 21min 13sec

So how is it done first of all we change hours into minutes

7hrs. x 60 = 420min

Now add 12 minutes to it = 420 + 12min

=432min

Then we will write  sec as decimal

• (remeber we will only took 60sec not 100 sec)

so it will be 432.19min

Do same to aother you will get

=908.54min

now add them you finally get

(no need to add yourself I have done with my trick and its correct)

= 22hrs 21min 13sec

Hope it helps you

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