If the carpenter cuts off 25%, so it would remain 85% of the stick, so we can multiply 84 to 85% to calculate the length remaining.
[tex]84\times\frac{85}{100}=71.4\text{ cm}[/tex]Then, she cuts this piece of 71.4 cm into 6 equal pieces, so we have to divide 71.4 by 6.
[tex]\frac{71.4}{6}=11.9\text{ cm}[/tex]The length of each piece of stick is 11.9 cm
