Question

2 ways of finding SI

Answer 1

Sn=n/2(a+l)

       or

Sn=n/2(2a+(n-1)d)

if this is not what u wanted then plz tell

Answer 2

Answer:

$\sf{ \red{s.i = \frac{prt}{100 } }}$

$\sf{ \red{s.i = amount \: - intrest}}$