1)

The largest four-digit number which is perfect cube is :

A) 8000

B) 9261

C) 9999

D) none of these

Option B

### Explanation:

$8000=2^{3}\times 2^{3}\times 5^{3}$
$9261=3^{3}\times 7^{3}$
$9999=3^{2}\times 1111$
Clearly the largest four digit number which has perfect cube is 9261