Question

a mixture of 20 litres contains milk and water in the ratio 4:1. How many litre of the mixture be taken out and the same quantity of water added to it so that the ratio of milk and water becomes 3:2?

Answer 1

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Milk in container earlier=(4/5)*45=36 L

Water in container earlier=(1/5)*45=9 L

Now required milk:water ratio=3:2

Suppose we add x L of water in container,then;

36/(9+x)=3:2

solving we get x=15 L

Therefore 15 L of water required to make ratio 3:2

So on adding 15 liters water to the mixture of 45 liters and making it's final Volume to 60 liters will give a milk to water mixture in the ratio 3 : 2 . OK .

Answer 2

Answer:

Step-by-step explanation:

Mixture से जो भी निकलेगा उसमे milk and water का ratio 4:1 ही होगा ।

4y + 1y निकाला = 5y

अब बचा हुआ milk = 16 - 4y

बचा हुआ water = 4 - 1y +5y

Then equation is,

16-4y / 4-1y+5y = 3/2

32-8y = 12-3y+15y

32-12 = -3y+15y+8y

20 = 20y

20/20 = y

1 = y

Water निकाला = 5y

= 5×1

= 5 liters