Question

in the figure a cylindrical wrapper of flat tablets is shown the radius of tablet is 7mm and it's thickness is 5 mm how many such tablets are wrapped in the wrapper

Answer 1

Volume of the wrapper = pi * 0.7^2 * 10  =  4.9pi cm^2
Volume of one tablet = 0.7^2 * 0.5 pi =  0.245pi

Number of tablets in the wrappe = 4.9pi / 0.245pi =  20 (answer)