Question

An alloy contain only zinc and copper and they are in the ratio of 7:9 if the weight of the alloy is 8kg then find the weight of the copper

Answer 1

Answer:

Step-by-step explanation:

Let the given ratio be 7x and 9x

He said

7x +9x =8000g

16x =8000g

X =8000/16

X= 500g

Weight of copper = 9x = 9×500g =4500g