A hemispherical bowl of internal diameter 18 cm contains water. This water is to be filled in cylindrical bottles of diameter 6cm and height 3 cm. The number of bottles required to empty the bowl is:

18

Internal diameter of the hemisphere = 18 cm

Then radius = 9 cm

Diameter of the cylinder = 6 cm

then radius = 3 cm

So, let the number of the bottles that are required to empty the bowl = n

Now, according to the question,

\(\frac{2}{3}\)πr³ = n ×  πR²H

= \(\frac{2}{3}\)πr³ = n ×  πR²H 

= = \(\frac{2}{3}\)(9)³ = n ×  (3)²(3)

= n = 18