# A hemispherical bowl of internal radius9 cm is full of liquid. The liquid is to be filled into cylindrical shaped bottles each of radius 1.5 cm and height 4 cm. How many bottles are needed to empty the bowl?

Let n bottles are needed to empty the bowl,

Therefore,

Volume of bowl = Volume of 'n' bottles

For hemispherical bowl,

As we know,

Volume of a hemispherical bowl

Where r is the radius of hemisphere

Volume of bowl

For single cylindrical bottle,

Base radius, r = 1.5 cm

Height, h = 4 cm

As we know,

Volume of cylinder = πr2h

h is height of cylinder.

Volume of one bottle = π(1.5)2(4) = 9π cm3

As,

Volume of bowl = volume of n bottles

486π = (9π)n

Hence, 54 bottles are needed to empty the bowl.

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