• # question_answer 17)                 A batch of bottles were packed in 25 boxes with 12 bottles in each box. If the same packed using 20 bottles each box, how many boxes would be filled?

 Number of bottles 12 20 Number of boxes 25 $x$
Lesser the number of bottles, more will be number of boxes required to be filled. So, this is a case of inverse proportion. Hence, $2\times 25=20\times x$ $\Rightarrow$               $x=\frac{12\times 25}{20}$ $\Rightarrow$               $x=15$ Hence 15 boxes would be filled.