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Alloy 'CuZ' has Cu : Zn 4 : 1 while alloy 'ZiC' has Cu : Zn 1 : 3. One melting 10 kg of CuZ with 16 kg of Zic and some amount of pure Cu, a new alloy 'Cuzec' with Cu : Zn 3 : 2 is obtained. The weight of Cuzec is

  • Option 1)

    9 \: kg

  • Option 2)

    35\: kg

  • Option 3)

    40\: kg

  • Option 4)

    None of these

  • Option 5)

    30\: kg

Answers (1)

best_answer

Cu: Zn = 4:1

In\: 10\: kg \: Cu= 8, Zn = 2

Cu: Zn = 1:3

In \: 16 \: kg \: Cu = 4, Zn = 12

Total \: Cu = 12, Zn = 14

12+\: x/14 = 3/2 , X=14

In \: the \: final\: mixture = weight = 12+9+14= 35kg

 

Posted by

rishi.raj

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