please solve this step by step no irrelevant answere . answer is in right hand side but i want step by step explanation please
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2 2/5 = 12/5 ; 3 1/2 = 7/2 ; 1 hour is equal to 60 minutes ; 7/2 hours is equal to 7/2 * 60 = 210 minutes.
60 minutes = 12/5 petrol
210 minutes = (12/5 * 210) / 60
210 minutes = 8.4 petrol
210 mins = 8 2/5 petrol
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