Mixture and Alligation

Quantitative Aptitude(IBPS RRB PO)

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A tanker contains a mixture of alcohol and water in the ratio 4 : 5. 10 liters of mixture is drained due to leakage. To compensate it, the driver mixed 10 liters of pure alcohol then the ratio becomes 2 : 1. Find the initial quantity of alcohol in the container.

This questions was previously asked in

RRB PO Prelims (21 August 2022 Shift1)

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$11\frac{1}{9} liters$