Question

An alloy consists of zinc and copper in the ratio 4:5. How much copper is there in 56kg of alloy?

please answer

Answer 1

Answer:

The ratio of Zn & Cu in alloy is 3:4. Let the proportion of Zn &Cu in kg is 3x & 4x kg respectively. So 3x+4x=56,or x=56/7=8kg. The propotion of Zn in the alloy is 3×8=24 kgs & that of Cu is 56-24=32kgs.

Ans:32 kgs.

Step-by-step explanation:

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Answer 2

Given

• Alloy consists of Zinc and Copper = 4:5
• Total Mass of Alloy = 56kg

Explanation

Let amount of the Zinc be x and the amount of the copper be y.

❍We can find Exact mass of Zinc as to apply this method as:-

⤖ x = 56 × 4/9

⤖ x = 224/9

⤖ x = 24.8 kg

❍Now, We can find the Weight of Copper in Alloy as:-

⤖ y = 56 × 5/9

⤖ y = 280/9

⤖ y = 31.1 kg

Hence,

• The Weight of the Copper in the Alloy is 31.1 kilograms.