A batch of bottles was packed in 25 boxes with 12 bottles in each box. If the same batch is packed using 20 bottles in each box, how many boxes would be filled?

Let the number of boxes be x.
No. of bottles in each box 12 20
Boxes 25 x
Here the number of bottles and the number of boxes are in inverse proportion.
∴ 12/20 = x/25 ⇒ xX20=12×25 ⇒ x=12×25/20=15
Hence, 15 boxes would be filled.

Class 8 Maths Chapter 11 Exercise 13.2 Solution in Video

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