Question

7. An alloy is made up of iron and copper. Copper and iron are present in the ratio 7: 5
in the alloy. If it contains 65 gram of copper, what is the weight of the alloy?

Answer 1

Answer:

the answer is

110 approx

Answer 2

Answer:

Step-by-step explanation:

Iron = 7x

Copper = 5x = 65 gram

5x = 65

x =  65/5

x = 13

so Iron = 7x = 7x13 =  91 gram
Iron = 91 gram

copper = 65 gram

Alloy = 91 + 65

Alloy =  156 gram