My watch gains 5 seconds in 3 minutes was set right at 7

My watch gains 5 seconds in 3 minutes was set right at 7 am. In the afternoon of the same day, when the watch indicates quarter past 4 O’clock, the true time is:

As we know that ,
From 7 am to 4 :15 pm, the time is 9 hours 15 minutes, i.e., [( 9 x 60 )+ 15 ] = 555 minutes

Now,	37	minutes of this watch = 3 minutes of correct watch.
	12

∴ 1 minutes of this watch =		3 x 12		minutes on a correct watch
		37

⇒ 555 minutes of this watch =		3 x 12	x 555		minutes on a correct watch
		37

= 540 minutes or 9 hours of correct watch
∴ Correct time after 7 am is 4 pm.
Hence , the true time is 4 pm .

59	7	minutes past 3
	12

12	3	minutes past 3
	11

7	5	minutes past 4
	12