Question

How many golf balls would fit in a 55 gallon drum? (One 2allon = 231 cubic inches; golf ball radius = .840 inches Volume of sphere = 4/3 * pi * r ^ 3

Answer 1

5,082 balls  golf balls would fit in a 55 gallon drum.  

Solution:

Given,  

Radius of a golf ball = 0.840 inches

$\text {Volume of the golf ball}=\frac{4}{3} \times 3.14 \times r^{3}$ [Pi = 3.14]

$\rightarrow \frac{4}{3} \times 3.14 \times(0.840)^{3}=2.5 \text { inches }^{3} \\\\ \text { Volume of the gallon }=\text { number of gallons } \times \text { value of one gallon }$

$\rightarrow 55 \times 231 \text { cubic inches }=12705 \text { cubic inches }$

$\text { Number of balls fit }=\frac{\text { volume of the gallon }}{\text { volume of the golf ball }}$

$\rightarrow \frac{12705}{2.5}=5,082$