Making use of the cube root table, find the cube root of the following (currect to three decimal places):
7342
=
We know that value of
From cube root table we get,
=
So by unitary method,
∵ For difference (7400 – 7300 = 100 ) difference in cube root values = 19.48 – 19.39 = 0.09
∴ For difference (7342 – 7300 = 42) difference in cube root values =
=
Thus, the required cube root is = 19.427.