Question

in a mixture of milk and water of volume 30 l the ratik of milk and water is 7:3 find the quantity of water to be addwd to the mixture to make the ratio of milk and water 1:2​

Answer 1

Answer:

33 l water must be added.

Step-by-step explanation:

Let, the ratio be 7y and 3y. Then,

7y + 3y =30

10y = 30

y = 30/10

y = 3

so, 7y = 21 and 3y = 9

by question to make the ratio of milk and water 1:2

Now, let the first ratio 1 be the value of 7y or the initial value of milk.

so,

the second ratio 2 = 2* 7y

                               =2 *21

                               =42