Find the digit at unit's place of $128^{3}$ .

8

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6

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4

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2

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Solution

The correct option is B $2$
Given, the number is $128^{3}$ .
Here, the units digit is $8$ .
We know, the cube of $8$ , i.e. $8^{3} = 512$ , whose units place is $2$ .
Therefore, the units digit of the cube of $128$ , i.e. $128^{3}$ is $2$ .
Hence, option $D$ is correct.

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Find the digit at unit's place of 1283.

The correct option is B 2Given, the number is 1283.Here, the units digit is 8.We know, the cube of 8, i.e. 83=512, whose units place is 2.Therefore, the units digit of the cube of 128, i.e. 1283 is 2.Hence, option D is correct.

Find the digit at unit's place of $128^{3}$ .

The correct option is B $2$
Given, the number is $128^{3}$ .
Here, the units digit is $8$ .
We know, the cube of $8$ , i.e. $8^{3} = 512$ , whose units place is $2$ .
Therefore, the units digit of the cube of $128$ , i.e. $128^{3}$ is $2$ .
Hence, option $D$ is correct.