Question

Question 3. what is the percentage of copper if the casting weight of copper 42.3 kg and tin weight 2.7 kg? give of the soliution​

Answer 1

Answer:

94%

Step-by-step explanation:

Weight of Copper = 42.3kg

Weight of Tin = 2.7kg

Total weight = 42.3kg+2.7kg

= 45kg

Percentage of copper =

$(\frac{42.3kg}{45kg} \times 100)percent$

$= 94percent$