\

Effective rate of interest is $\"\"$ .

\

Effective rate $\"\"$ .

\

For quartely compounded $\"\"$ .

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Substitute all the values in the equation.

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

Therefore,the rate of interest is $\"\"$ .

\

\

The rate of interest is is $\"\"$ .