Question

a patient in a hospital is given soap daily in a cylindrical bowl of diameter 1 cm. if the bowl is filled up to a height of 4cm how much soap has to be prepared to serve 500 patients

Answer 1

Diameter of the bowl = 1cm
So, Radius(r) = 1/2 = 0.5cm

Height of the bowl = 4cm

So, the volume the bowl would contain =

πr^2h

Substitutue π = 22/7 or π = 3.14

22/ 7 × 0.5 * 0.5 * 4 = 3.14 cm^3

So to serve 500 patients, the soap required would be = 500*3.14 = 1570 cm^3 (Ans....)