a) 20 Litres
b) 40 Litres
c) 60 Litres
d) 80 Litres
Answer: b
Explanation: Milk : water = 17 : 3 = 17x : 3x
17x + 3x = 200
⇒ x =10 litre
Milk = 170 litre and water = 30 litre in initial mixture.
Let ‘y’ litre of milk added in mixture
i.e. 170 + y : 30 = 7 : 1
$$\frac{{170 + y}}{{30}} = \frac{7}{1}$$
y = 210 – 170 = 40 litre
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