Multiple choice

Zinc and copper are melted together in the ratio 9: 1. What is the weight of melted mixture, if 28.8 kg of zinc has been consumed in it?

  1. 60KG

  2. 64KG

  3. 58KG

  4. 70KG

  5. 72KG

Reveal answer Fill a bubble to check yourself
B Correct answer
AI explanation

The mixture is formed by mixing zinc and copper in the ratio of 9 to 1. This means zinc constitutes 9/10 of the total mixture. If 28.8 kg of zinc is used, the total weight is 28.8 multiplied by 10/9. Calculating this gives a total weight of 32 multiplied by 2, which is 64 kg.