Q&A - Ask Doubts and Get Answers
Q

An alloy contains the copper and aluminum in the ratio 7:4. While making the weapons from this alloy, 12% of the alloy get destroyed. If there are 12 kg o

An alloy contains the copper and aluminum in the ratio 7:4. While making the weapons from this alloy, 12% of the alloy get destroyed. If there are 12 kg of aluminum in the weapon, then the weight of the alloy required is :

  • Option 1)

    45kg

  • Option 2)

    40kg

  • Option 3)

    37.5 kg

  • Option 4)

    14.4 kg

  • Option 5)

    48 kg

Answers (1)
Views

Copper : Aluminum = 7 : 4

\left ( \frac{88}{100} \right )\times \left ( \frac{4x}{11} \right )=12

x=37.5\, Kg

Exams
Articles
Questions