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Find the Cube of 0.3 . - Mathematics

Sum

Find the cube of 0.3 .

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Solution

 We have:  \[0 . 3 = \frac{3}{10}\]

Also,

\[\left( \frac{m}{n} \right)^3 = \frac{m^3}{n^3}\]

∴  \[\left( \frac{3}{10} \right)^3 = \frac{3^3}{{10}^3} = \frac{3 \times 3 \times 3}{10 \times 10 \times 10} = \frac{27}{1000} = 0 . 027\]

 

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APPEARS IN

RD Sharma Class 8 Maths
Chapter 4 Cubes and Cube Roots
Exercise 4.2 | Q 4.07 | Page 13
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