540
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Suppose 9 is 60% of x ie 9/x = 60/100 or x = 100*9/60 = 15
60 x 9 = 540
There are 60 seconds in one minute. There are 60 minutes in one hour. Therefore, 12 hours 9 minutes is equal to (12 x 60 x 60) + (9 x 60) = 43740 seconds.
= (60-32) x 5/9 = 28 x 5/9 C
20 x 5 = 100 60 x 5 = 300 9 x 5 = 45 60 + 9 = 69