The number of cubes should be 1.440.
Calculate the volume of each shape is as follows:
Volume of rectangle = [tex]6 \times 5\div 6 \times 1\ 2\div 6 = 6\ 2\div 3[/tex] cubic inches.
And,
Volume of cube =[tex] 1\div6 \times 1\div6 \times 1\div6 = 1\div216[/tex] cubic inch.
Now
divide the volume of the rectangle by the volume of the cube:
So,
[tex]= (6\ 2\div 3) \div (1\div 216)[/tex]
= 1.440
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