A thief has stolen 15 L of beer from a container and replaced with the same quantity of water H...........

Quantitative Aptitude ( CCS) Mixture and Alligation

A thief has stolen 15 L of beer from a container and replaced with the same quantity of water .He again repeated this process 3 times .Thus the ratio of the beer become 343 :169 .Find the initial amount of beer in the container .

90 L

120 L

140 L

110 L

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Explanation:

The initial amount of beer in the container was =343 + 169 = 512 L
Initial amt. of beer : After mixed with water
512 : 343
Taking cube roots on both the sides,
8 :7
For 1 unit of beer -> 15 L
For 8 units of beer -> 120 L

Hence, option 2 is the correct answer.

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