Question

The thickness of 50 sheets of paper is 20.5 mm. What is the thickness of each sheet in cm ?

Answer 1

Answer:

convert 20.5 mm into cm that is

1mm =0.1cm

20.5mm= 0.1*20.5=2.05 cm

so each sheet thickness =205/100*50

= 0.041cm

so each sheet thickness is 0.041cm

Answer 2

Answer:

1 cm = 10 mm

? cm = 20.5 mm

$\frac{20.5}{10} = 2.05 \: cm$

50 sheets = 2.05 cm

1 sheet = ?

$\frac{2.05}{50}$

$= \frac{205}{5000} \\ = 0.041 \: c m$