From a container of beer, a thief has stolen15 liters of beer and replaced it with water. He repeated the same process. In three attempts the ratio of beer and water became 343 : 169. The initial amount of beer in the container was:
Answer & explanation
Correct answer: option 4
We know that,
Final Quantity = Intital Quantity(1 - replaced/total)n (where n = no. of process)
We have,
Thief stolen cold drink at one time = 15 lts
According to the question,
Let the final Quantity and Initial Quantity of cold drink be 343x and 512x
and total Quantity of vessel be y
= 343x = 512x(1 - 15/y)3
= y = 120 litres