Question

Find the tens digit of the cube root of the following numbers:​
​(i) $226981$.

Answer 1

Step: Find the tens digit of cube root​

Unit digit of $226981$ is $1$.
$\therefore$ Unit digit of its cube root is also $1$
Now,
The number obtained by striking out units ,tens and hundreds digits is $226$.
$6^3<226<7^3$

$\therefore$ The tens digit of the cube root is $6$.