Question

If the thickness of a pile of $12$ cardboard is $35$mm, find the thickness of a pile of $294$ cardboard.

Answer 1

Thickness of $12$ cardboard $=35mm$

Thickness of $1$ cardboard $=\frac{35}{12}mm$

Thickness of $294$ cardboard $=\frac{35}{12}\times 294$

$=\frac{35\times 49}{2}mm$

$=857.5mm$

$=85.75cm$