The density of the block is 1.25 cm³
The correct answer to the question is Option B. 1.25 cm³
To solve this question, we'll begin by calculating the volume of the block. This can be obtained as follow:
Length = 7 cm
Height = 4 cm
Width = 3 cm
Volume =?
Volume = Length × Width × Height
Volume = 7 × 3 × 4
Volume = 84 cm³
Thus, the volume of the block is 84 cm³
Finally, we shall determine the density of the block. This can be obtained as follow:
Density is defined as mass per unit volume i.e
[tex]Density = \frac{mass}{volume} \\\\[/tex]
Mass of block = 105 g
Volume of block = 84 cm³
Density of block =?
[tex]Density = \frac{mass}{volume}\\\\Density = \frac{105}{84}\\\\[/tex]
Density of block = 1.25 cm³
Therefore, the density of the block is 1.25 cm³.
Hence, Option B. 1.25 cm³ gives the correct answer to the question.
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