Question

In how many years will ₹150 double it self at 4% simple interest
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Answer 1

$\bold{Question}$

In how many years will ₹150 double it self at 4% simple interest

$\bold{Solution}$

$\bold{According\ to\ the\ question }$

$\bold{Amount =150×2=Rs.300}$

$\bold{r=4\ and\ P=Rs.150}$

Simple interest =A−P

=300−150

=Rs.150

$\bold{Simple\: Interest ={\dfrac{PRT}{100}}}$

$\bold {150= {\dfrac{150×4×T}{100}}}$

$\bold {T={\dfrac{150×100}{150×4}}}$

$\bold {T={\dfrac{100}{4}}}$

$\bold {T=25years}$

hope it helps ☺️

Answer 2

Answer:

Answer

According to the question

Amount =150×2=Rs.300

r=4% and P=Rs.150

Simple interest =A−P

=300−150

=Rs.150

Simple interest =

100

PRT

150=

100

150×T×4

T=

150×4

150×100

T=25 years