Question
An alloy of copper and tin contains 87.5% of copper. If
30 kg of more tin is added to the alloy, the copper content gets reduced to 50%. Find the quantity of the new alloy. MTSolution
Ratio of copper to tin in the alloy = 7:1 Let the quantity of copper and tin in the alloy be 7x kg and x kg, respectively. According to question, 7x = x + 30 x = 5 kg So, the quantity of new alloy = 7x + x + 30 = 8x + 30 ⇒ 40 + 30 = 70 kg
More Mixture Questions
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- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exactvalue.)
(1800.23 ÷ 29.98) + (816.32 ÷ 23.9) + 1634.11 = ?
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36.05 × 5.02 + 12.052 = ? + 9.09 × 4.04
(31.9)3 + (34.021)² - (16.11)3 - (42.98)² = ?
