Question

A circular pizza costs $Rs.\mathrm{19.99.}$ The cost of 1 square centimeter if the diameter of the pizza is $36cm$ is (in $Rs.$) ___.

Answer 1

Given: Fiameter, $d=36cm$

Area of circular pizza = $\pi \times \frac{d^2}{4}$

$=\frac{22}{7}\times \frac{{36}^2}{4}=1018.286$

$\because$ Cost of $1018.286c{m}^2$ $=Rs.19.99$ [Cost of pizza given.]

$\therefore$ Cost of 1 $c{m}^2$ $=\frac{19.99}{1018.286}=Rs.0.196=Rs.0.02$ (Approx)