Question

In a particular type of bronze, 25% is zinc and the rest is copper. Find the amount of copper il
364 kg of such type of bronze.​

Answer 1

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Answer 2

Correct Question

In a particular type of bronze, 25% is zinc and the rest is copper. Find the amount of copper if 364 kg of such type of bronze.

Answer

To Find:-

• The amount of copper

Given:-

• Percentage of zinc = 25%
• Amount of bronze = 364kg

Solution:-

Method 1

The percentage of copper = ( 100 - 25 )% = 75%

So, Amount of copper =

step-by-step explanation:

$\sf{\longrightarrow \: \dfrac{75}{100} \times 364}$

$\sf{\longrightarrow \: \dfrac{15}{20} \times 364}$

$\sf{\longrightarrow \: \dfrac{3}{4} \times 364}$

$\sf{\longrightarrow \: 3 \times 91}$

$\sf{\longrightarrow \: 273kg}$

Method 2

Percentage of zinc = 25%

Now, amount of zinc is

$\sf{\longrightarrow \: \dfrac{25}{100} \times 364}$

$\sf{\longrightarrow \: \dfrac{1}{4} \times 364}$

$\sf{\longrightarrow \: 91kg}$

Now,

$\sf{364kg - 91kg}$

$\sf{ = 273kg}$

Required Answer

• The amount of copper is 273kg.