Question
An alloy of copper and tin contains 85% of copper. If 28
kg of more tin is added to the alloy, the copper content gets reduced to 50%. Find the quantity of the new alloy.Solution
Ratio of copper to tin in the alloy = 17:3 Let the quantity of copper and tin in the alloy be 17x kg and 3x kg, respectively. According to question, 17x = 3x + 28 x = 2 kg So, the quantity of new alloy = 17x + 3x + 28 = 20x + 28 ⇒ 40 + 28 = 68 kg
 Every year the World wetland Day is celebrated on 2nd  February. The theme foe the year 2023 was
Which of the following contribute least to your Carbon footprint?
Which of the following pair is not correct?
Which of the following is not an indicator of sugarcane maturity?
Which of the following statements is/are true about soil pH and nutrient availability?
Statement A: Most essential plant nutrients are readily av...
Which of the following is a function of cuboidal epithelial tissue?Â
Which of the following assets, the insurance cannot be covered?
Pride of India is a variety of......... crop.
INM comprises ofÂ
Kabuli chamtkar and Udai are chickpea verities from