Question

The ratio of copper and zinc in a 63 kg alloy is 4:3. Some amount of copper is
extracted from the alloy and the ratio becomes 10:9. How much copper is extracted?
a) 6 kg
b) 8 kg
c) 12 kg d) 10 kg​

Answer 1

Answer:

Option (a) 6 kg

Step-by-step explanation:

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