Respuesta :

Seven add five is 12 . A clock has four quarters , the first quarter is fifteen minutes.
Therefore, 5 1/5 hours after 7:00 = 12:15

The 5 1/4 hours after 7:00 is 12:15 or a quarter past 12.

We need to find what is the time when 5(1/4) hours are passed after 7:00.

We know that,

1 hour = 60 minutes

Let us write 5(1/4) hours in a simpler form.

5 ( 1 / 4 ) hours

= 21 / 4 hours

= 5.25 hours

Converting into minutes.

We have,

1 hour = 60 minutes

Multiplying 5.25 on both sides.

5.25 x 1 hour = 5.25 x 60 minutes

5.25 hour = 315 minutes

And 315 minutes means 5 hours 15 minutes.

i.e (5 x 60 + 15) minutes = (300+15) minutes = 315 minutes

So,

5.25 hour = 5 hours 15 minutes.

Adding 5 hours 15 minutes to 7:00 we have,

7 + 5 hours 15 minutes = 12 : 15

Thus, 12:15 or a quarter past 12 is our time.

Learn more about time here:

https://brainly.com/question/13186211

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