Question

the weight of zinc and copper in an alloy is in the ration 3:7 if zinc weighs 12.6 kg find the weight of the alloy

Answer 1

Answer:

Weight of alloy = 42 kg

Step-by-step explanation:

Let the weight of zinc and copper in the alloy be 3x and 7x respectively.

Weight of zinc = 3x = 12.6 kg

=> x = 12.6/3 kg

=> x = 4.2 kg

So, weight of copper = 7x = 7×4.2kg = 29.4 kg

Hence, Weight of alloy = (12.6 + 29.4) kg = 42 kg .

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