Question

a black Smith has 15g of gold ornament in which he mixed copper in the ratio of 7:3. find how much copper and gold is there in that 15g????​

Answer 1

Answer:

Copper: 10.5g

Gold: 4.5g

Step-by-step explanation:

Let the weight (mass) of gold and copper in the ornament be denoted as 7x and 3x, respectively.

We are given that the ornament weighs 15g.

Hence,

7x + 3x = 15

10x = 15

x = 15/10

x = 1.5

Hence,

7x = 7*1.5 = 10.5

3x = 3*1.5 = 4.5

Weight of copper = 10.5g

Weight of gold = 4.5g

Answer 2

Step-by-step explanation:

Total Weight - 15g

ratio :- 7:3 Gold and copper respectively..

so, 3 =4.5g

7=10.5g