# Math Help - Simple Interest

1. ## Simple Interest

Hi.. I have a confusion that this problem the answer is not coming...
Using the relation I=P*R*T,
find the interest on
Rs 5400 at 7% per annum for 146 days...

if they given in the months we can divide it by 12...
here the problem is given in days..
how to do this...
Thank You

2. Originally Posted by saranya

if they given in the months we can divide it by 12...
here the problem is given in days..
how to do this...
There are 365 days in a year,
so $T=days/365$

3. Originally Posted by u2_wa
There are 365 days in a year,
so $T=days/365$
yah,i tried with 365 and 366 days also..but the answer 252 doesn't came.
thank u

4. The annual interest is $5400 \cdot .07$,

so the interest accumulated over 146 days should be

$\frac{146}{365} \cdot 5400 \cdot .07 = 151.2$

Am I missing something?

5. Originally Posted by saranya
yah,i tried with 365 and 366 days also..but the answer 252 doesn't came.