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90 litres of a mixture of milk and water contains 20% water.
Question 1:
90 litres of a mixture of milk and water contains 20% water.
How much water should be added so that the mixture has 28% water ?
A.
8 Litres
B.
18 Litres
C.
12 Litres
D.
10 Litres
Feedback
Quantity of water = 90*20/100 = 18
=> 18+x/90+x = 28/100
=>1800+100x = 2520+28x
=>72x = 720
X = 10 Litres
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