Answer
$3\times 10^{-3}\ C$
Work Step by Step
Given,
The value of capacitance $C = 25 \mu F$
The potential difference $V =120 V$
The charge(q) stored is given by formula
$q = CV$
is;
$q=(25\times 10^{-6} F )(120 V)$
$q = 3\times 10^{-3} C$