Question

Which of the following are the perfect cubes?

• A. $729$
• B. $10000$
• C. $1729$
• D. none of these

Answer 1

The correct option is A $729$

Here,

$729=9\times 9\times 9=9^3$

$10000=10\times 10\times 10\times 10={10}^4$

$1729=247\times 7$.

Hence, clearly only $729$ is a perfect cube.

Therefore, option $A$ is correct.