Question

A book has a volume of 144 cm3. Its
length is 12cm and its breadth is
8cm. Find its thickness.​

Answer 1

$Volume = length \times breadth \times thickness \\ thickness = \frac{volume}{length \times breadth} \\ thickness = \frac{144}{12 \times 8} \\ thickness = 1.5 \: cm$

Answer

thickness = 1.5 cm

Answer 2

Answer:

Let the thickness be x

We know that volume of a cuboid = length x Breadth x height

Therefore,

=> 12cm x 8 cm x x = 144cm³

=> 96x cm² = 144cm³

$= > x = \frac{144}{96} \\ = > x = 1.5cm$