Robek’s truck was leaking fuel at 1.2L/min. How many litres of fuel will leak out in 1 hour?

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1. Answer:

   7.2L

   Step-by-step explanation:

   let quantity of fuel that will leak in 1hr be x

   1hr= 60min

   time taken for 1.2l to leak= 1 min

   quantity of petrol that will leak in 1hr=

   1 : 1.2 : : 60 : x

   product of mean= product of extreme

   1.2 X 60 = x

   7.2l = x

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