A solution of 30 litres of Milk and Water, has 70% milk . How many litres of water must added so that the volumes of milk and water will be in the ratio 3:5.

Question

Options

A.6

B.3

C.5

D.4

 

 

Answer 1

30 liters of milk and water is 70% milk = m/w = 21/9 21 liters milk, 9 liters water

how much water should be added to get a ratio of 3/5=m/w?? = 3/8 or 37.5% milk

(21)/(9+x) = 3/5

27+3x = 105

3x = 105-27 = 78

x = 78/3 =26 liters water needed

21/(9+26) = 21/35 = 3/5