Question

7.A mixture of 70 litres of milk and water contains 10% of water. How much
water must be added to make water 12 1/2%​

Answer 1

Answer:

By Yoshana Chaudhary

Step-by-step explanation:

HERE IS YOUR SOLUTION

Mixture = 70 L

Water =10% of mixture = 10% of 70 = 7 L.

Water= 63 L.

Let x water added. Now, Water and Milk ratio will be,

(7 + x)/63 = 12.5/87.5

7 +x = 787.5/87.5

7 + x = 9

x = 2 L.

Water added = 2 L.