Question

60 kg of an alloy of Copper and Zinc contains 60% copper how much copper must be added into it to make an alloy containing 80% copper

Answer 1

Answer:

12 kgs

Step-by-step explanation:

amount of copper in allow = 6/10×60=36 kgs

amount of 80% of copper = 8/10×60=48 kgs

amount of copper to be added =(48-36)kg = 12 kgs

Answer 2

Answer:

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