(i) 226981

Let’s take number 226981.

Unit digit = 1

So unit digit in the cube root of 226981 = 1

After striking out the units, tens and hundreds digits of 226981,

Now we left with 226 only.

As we know that 6 is the Largest number whose cube root is less than or equals to 226(6³<226<7³).

So,

The tens digit of the cube root of 226981 is 6.

(ii) 13824

Let’s take number 13824.

Unit digit = 4

So unit digit in the cube root of 13824 = 4

After striking out the units, tens and hundreds digits of 13824,

Now we left with 13 only.

As we know that 2 is the Largest number whose cube root is less than or equals to 13(2³<13<3³).

So,

The tens digit of the cube root of 13824 is 2.

(iii) 571787

Let’s take number 571787.

Unit digit = 7

So unit digit in the cube root of 571787 = 3

After striking out the units, tens and hundreds digits of 571787,

Now we left with 571 only.

As we know that 8 is the Largest number whose cube root is less than or equals to 571(8³<571<9³).

So,

The tens digit of the cube root of 571787 is 8.

(iv) 175616

Let’s take number 175616.

Unit digit = 6

So unit digit in the cube root of 175616 = 6

After striking out the units, tens and hundreds digits of 175616,

Now we left with 175 only.

As we know that 5 is the Largest number whose cube root is less than or equals to 175(5³<175<6³).

So,

The tens digit of the cube root of 175616 is 5.