Question

Zinc and copper are in the ratio of 5 : 3 in 200 gm of an alloy. How much grams of copper be added to make the ratio as 3 : 5?

Answer 1

Hi

Mate

Here is the answer

We know

Ratio of Zinc : Copper is 5 : 3

Let the it be5x and 3x respectively.

Now,

According to the question

8x = 200

=>x=200/8

=>X=25

Zinc=5x=5×25=125gm

Copper=3x=3×25=75gm

After adding x gram copper, the ratio becomes 3 : 5

So

125/75+x = 3/5

=>625 = 225 + 3x

=>400 = 3x

x=4003=133(1/3) gm

Hope it helps

BE BRAINLY ///