Question

. How many lead cubes of side 2 cm could be made from a lead cube of side 8 cm?
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Answer 1

Answer:

volume of cube = a^3

volume of small cube = 2^3

=8

volume of big cube = 8^3

=512

hence, 512÷8=64

Answer 2

Question:

How many lead cubes of sides 2 cm could be made from a lead cube of side 8 cm?

Solution:

$no \: of \: cubes = \frac{volume \: of \: cube \: of \: side \: 8cm}{volume \: of \: cube \: of \: side \: 2 \: cm} \\ \\ \\ = \frac{ {8}^{3} \: {cm}^{3} }{ {2}^{3} \: {cm}^{3} } \\ \\ \\ = \frac{8 \times 8 \times 8}{2 \times 2 \times 2} \\ \\ \\ \\ = \frac{64}{1} \\ \\ \\ \\ = 64 \: cubes$

Points to Remember:

• Use the formula correctly
• Perform correct calculations
• Solve step by step
• Verify the answer, if required.