Answer:
n = 192
Step-by-step explanation:
The volume of a cube is given by the formula;
V = L³
where L = cube side
Given L as 1/4, the equation become;
V = (1/4)³
V = 1³/4³
V = 1/64
But volume of n cube = volume of rectangular prism
Therefore,
n * 1/64 = 3
n = 64 * 3
n = 192
Therefore, 192 units is needed.
