A kisi tanki ko 1.8 hour me bharta hai or B 2.7 hour me bharta hai tatha C 4.5 hour me khali karta hai. A or C ko kuchh der tak chalu rakha jata hai or uske bad A ko band kar diya jata hai or B ko chalu kar diya jata hai to 5.5 hour ka time lagta hai to B kitna der chala?
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A kisi tanki ko 1.8 hour me bharta hai or B 2.7 hour me bharta hai tatha C 4.5 hour me khali karta hai. A or C ko kuchh der tak chalu rakha jata hai or uske bad A ko band kar diya jata hai or B ko chalu kar diya jata hai to 5.5 hour ka time lagta hai to B kitna der chala?
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