Q9 of 52 Page 145

In the figure 7.12, a cylindrical wrapper of flat tablets is shown. The radius of a tablet is 7 mm and its thickness is 5 mm. How many such tablets are wrapped in the wrapper?

Since there are only flat tablets which are stacked onto each other inside the cylindrical wrapper, so the radius of the wrapper does not matter.

Height of wrapper, H = 10cm = 100mm


Thickness of the tablet, h = 5mm



⇒ Number of the tablets = 20


∴ There are 20 tablets inside the cylindrical wrapper.


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