It is the same as: 120/4 = 30
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3/4 of 120 = 90
135 because 60+60=120 1/4 of 60 =15 120+15=135
120
In 1 hour there are 60 minutes Hence in 2 hours = 2 x 60 = 120 minites In a quarter of an hour there are 60 x 1/4 = 15 minites. Adding 120 + 15 = 135 minutes.
2 hours : 2 * 60 = 120 minutes a quarter: 1/4 * 60 = 15 minutes 3 quarters : 3 * 1/4 * 60 = 45minutes. 2 hours and 3 quarters hours: 120 + 45 = 165 minutes