Question

How many cubes of 5 cm are equivalent in volume to a 15 cm cube

Answer 1

Answer:

2 cubes

Step-by-step explanation:

Volume of small cubes × number of cubes = Volume of big cube

s³ × n = S³

5³ × n = 15³

n = 15³/5³

n = 225/125

n = 1.8

n = 2 (1.8≈2)

Answer 2

The number of cube is 27.

Step-by-step explanation:

Given that,

Side of smaller cube = 5 cm

Side of bigger cube = 15 cm

We need to calculate the number of cube

Using formula of volume of cube

Volume of cube = side x side x side

$\text{Number of cube}=\dfrac{V_{big}}{V_{sm}}$

Put the value into the formula

$\text{Number of cube}=\dfrac{15\times15\times15}{5\times5\times5}$

$]\text{Number of cube}=27$

Hence,  The number of cube is 27.

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Topic : number of cube

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