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Question
A cuboidal block of silver is 9 cm long, 4 cm broad and 3.5 cm in height. From it, beads of volume 1.5 cm3 each are to be made. Find the number of beads that can be made from the block.
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Solution
Length of the cuboidal block of silver = 9 cm
Breadth = 4 cm
Height = 3 . 5 cm
\[\text { Now, volume of the cuboidal block = length } \times \text { breadth } \times \text { height }\]
\[ = 9 \times 4 \times 3 . 5 \]
\[ = 126 {cm}^3 \]
\[ \therefore \text { The required number of beads of volume 1 . 5 } {cm}^3\text { that can be made from the block }= \frac{\text { volume of the silver block }}{\text { volume of one bead }}\]
\[ = \frac{126 {cm}^3}{1 . 5 {cm}^3}\]
\[ = 84\]
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