6
110
:
165 Ans.
In this form the calculation necessitates the extraction of two square roots, and with most numbers would require the use of two fractions in the calculation. By squaring all the three terms the calculation is much simpler, as in the following example:—
Example.—If the diameter of a 32’s is the 1/156 of an inch, what is the diameter of a 50’s?
32’s
: