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Mathematics
Problem
20. In a bank, principal increases continuously at the rate of
r
%
r \%
r
%
per year. Find the value of
r
r
r
if Rs 100 double itself in 10 years (
log
e
2
=
0.6931
\log _{e} 2=0.6931
lo
g
e
2
=
0.6931
).
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