The chef

The chef has to prepare 60 hundred-gram portions of roasted pork, he knows that 1 kg of raw meat loses 150 grams by baking. How many kilograms of meat does he have to start roasting?

Correct result:

x =  7.0588 kg


60•0.100= x •(1-150/1000)

850x = 6000

x = 120/17 ≈ 7.058824

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