Question

a bucket can hold maximum 12 liters of water what is the capicity of bucket

Answer 1

The correct answer of your question is "12 liters" 
This is because the capacity means the maximum amount which the something can contain with in it so in this case the question is already saying that the maximum amount of bucket can hold is 12 liter that means originally the question already telling that the capacity is 12 liter so maximum amount mentioned in the question will remain the answer here.

Hope this will helps.