Question

an alloy if tin and copper consist of 15 parts of tin and 105 parts of copper . Find the % of copper in the alloy?

Answer 1

Answer:

Step-by-step explanation:

copper-105unit

Total unit-120 unit

Percentage of copper-105*100/120

175/2

87.5%

Answer 2

parts of copper =105
$fraction \: of \: copper = 105 \div 125 \times \frac{?}{?}$
$percentge ={ 105 \div 125} \times 100\%$
$the \: answer \: is \: 84\%$