Question

What is the formula of P when A,T and R are given?

Answer 1

$p = \frac{a \times 100}{100 + t \times r}$

Answer 2

p=A/(1+r/100)n.
where p is principal,A is amount ,r is rate and n is time(number of years).n is the power on (1+r/100)...

hope it will help u....