Barrel with liquid

A barrel containing obilím weighs 123 kg in total. When 56% of the obilia is poured out, it weighs 74 kg. What is the mass of the empty barrel?

Final Answer:

m0 =  35.5 kg

Step-by-step explanation:

r=100%56%=110056=0.44 m=123 kg m2=74 kg  m0 + v = m m0 + r v = m2  vr v=mm2 v0.44 v=12374  0.56v=49  v=0.5649=87.5  v=2175=87.5  m0=mv=12387.5=35.5 kg



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