1,03,823 is a perfect cube. The units digit of cube root of 1,03,823 is ______.

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Solution

The correct option is C 7
Given number is 1,03,823.

$\begin{matrix} Units digit of & Units digit of a number & of the cube 1 & 1 2 & 8 3 & 7 4 & 4 5 & 5 6 & 6 7 & 3 8 & 2 9 & 9 \end{matrix}$

From the table, we can see that if the units digit of a perfect cube ends with 3, then units digit of cube root of that number is 7.

$∴$ The units digit of cube root of 103,823 is 7.

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