A hemispherical bowl of internal radius 12 cm is full of a liquid. This liquid is to be filled into conical bottles each of radius 6 cm and height 8 cm. How many such bottles are required to empty the bowl?
A hemispherical bowl of internal radius 12 cm is full of a liquid. This liquid is to be filled into conical bottles each of radius 6 cm and height 8 cm. How many such bottles are required to empty the bowl? Correct Answer 12
Given:
Internal Radius of Hemispherical Bowl = 12 cm
Height of Conical Bottle = 8 cm
Radius of Conical Bottle = 6 cm
Concept used:
Number of Conical Bottles = (Volume of Hemispherical Bowl)/(Volume of one Conical Bottle)
Formula used:
Volume of Hemispherical Bowl = (2/3)πR3
Volume of Cone = (1/3)πr2h
Where:
R = Radius of Hemispherical Bowl
r = Radius of Cone, h = Height of Cone
Calculation:
Volume of Hemispherical Bowl = (2/3) × (π × 123)
⇒ (2/3) × 1728π = 1152π
Volume of Cone = (1/3) × (π × 62 × 8)
⇒ (1/3) × 288π = 96π
Number of Conical Bottle = (1152π)/96π = 12
∴ The number of Bottles required is 12