In a mixture of 45 litres, the ratio of liquid A and liquid B is 7 ∶ 2. If 11 litres of liquid B is added to the mixture, then what will be the ratio of liquid A and liquid B in the new mixture?
1). 7 ∶ 4
2). 8 ∶ 5
3). 6 ∶ 5
4). 5 ∶ 3

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