how many circles of radius 7cm can be cut from a rectangular sheet of length 50cm and width 32cm?

Length of the rectangular sheet = 50 cm
Width of the rectangular sheet = 32 cm
So area of rectangular sheet = $50\times 32 = 1600 {\mathrm{cm}}^2$
Radius of each circle = 7 cm
So area of each circle = ${\mathrm{\pi r}}^2 = \frac{22}{7}\times 7^2 = 154 {\mathrm{cm}}^2$
So number of circles from a rectangular sheet = $\frac{\mathrm{area} \mathrm{of} \mathrm{rectangular} \mathrm{sheet}}{\mathrm{area} \mathrm{of} \mathrm{each} \mathrm{circle}} = \frac{1600 {\mathrm{cm}}^2}{154 {\mathrm{cm}}^2} = 10.38$
Therefore the number of circles that can be cut from the rectangular sheet is 10.