Question

find the amount of Rs. 3140 for 3 years 9 months at 3.5% simple interest per annum​

Answer 1

Given

• Principal P=Rs.3140
• Rate =3.5%
• Time=3 year's and 9 months

To find

• Amount

Formula used

$\\ \boxed{ \sf{SI= \dfrac{Principal×Rate×Time}{100}}}$

• Principal P=Rs.3140
• Rate =3.5%
• Time=3 year's and 9 months or 3(3/4) year's or 15/4

Putting these Values in Formula we get:-

$\\{ \sf{SI= \dfrac{3140×3.5× \frac{15}{4} }{100}}}$

${ \sf{SI= \dfrac{314×35× 3.75 }{100}}}$

${ \sf{SI= \dfrac{10990× 3.75 }{100}}}$

${ \sf{SI= \dfrac{41212.5 }{100}}}$

${ \sf{SI= {412.125 }}}$

• Simple interest for = Rs.412.125

We know that:-

$\\ \boxed{\sf{Amount= Principal-simple interest}}$

$\sf{Amount = 3140-412.125}$

$\gray{\sf Amount =Rs.3552.125}$

• Amount of Rs. 3140 for 3 years 9 months at 3.5% simple interest per annum is Rs.3552.125