Question

if the simple interest is half of principal at the rate of 3% p.a find the time period

Answer 1

ANSWER:-

Let the principal be P

Then, according to the question let the simple interest be

$\boxed{ \bold{ S.I= P/2}}$

Let rate of interest be r

Here time, t= 5 years

We know,

$\bold{{ \rightarrow}{S.I = P \times r \times t/100}}$

$\bold{{ \rightarrow}{ P/2= P \times r \times 5/100}}$

$\boxed{ \bold{{ \rightarrow}{ R= 10}}}$

Hence the rate of interest would be 10%

Answer 2

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Let the principal be P

Then, according to the question let the simple interest be

\boxed{ \bold{ S.I= P/2}}

S.I=P/2

Let rate of interest be r

Here time, t= 5 years

We know,

\bold{{ \rightarrow}{S.I = P \times r \times t/100}}→S.I=P×r×t/100

\bold{{ \rightarrow}{ P/2= P \times r \times 5/100}}→P/2=P×r×5/100

\boxed{ \bold{{ \rightarrow}{ R= 10}}}

→R=10

Hence the rate of interest would be 10