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Home Aptitude Ratio and Proportion See What Others Are Saying!
  • Question
  • Alloy A contains 40% gold and 60% silver. Alloy B contains 35% gold and 40% silver and 25% copper. Alloys A and B are mixed in the ratio of 1:4 .What is the ratio of gold and silver in the newly formed alloy is?


  • Options
  • A. 20% and 30%
  • B. 36% and 44%
  • C. 25% and 35%
  • D. 49% and 36%

  • Correct Answer
  • 36% and 44% 

    Explanation

    Assume the weight of alloy a is 100 kg 

    Therefore, The weight of alloy B is 400kg

     

                 Gold          silver         copper

     

        A       40kg          60kg          0kg

     

        B      140kg         160kg        100kg

     

      total    180kg          220kg        100kg

     

    Therefore, Ratio of gold and silver in new alloy =  180 500 : 200 500 = 36% :44%


  • More questions

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      ?. x 2 ? 6x = 7
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    • D. 4
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    • 2. 
      If U = {a, b, c, d, e, f}, A = {a, b, c}, find (U ? A)?.

    • Options
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    • 3. 
      Mukul's income is 10% more than Sunil's. How much less is Sunil's income than that of Mukul's?

    • Options
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    • 4. 3, 7, 15, 39, 63, 127, 255, 511

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    • Options
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    • Options
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    • Options
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    • 8. 
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