Respuesta :

McVoRTeX
8 / 12 will give u the amount per bottle

the answer to this is 0.666666667

Now multiply 0.666666667 by 15 to get your answer

your answer is 10
12 bottles of perfect water weigh = 8kg... so 15 bottles weigh = 15x8/12(cross multiplication) = 10kg. Hope it helps.