Question

principal amount=2500 inter 4•/• in 30 month found simple interest

Answer 1

Simple interest is = principle×time×rate/100
Therefore,
2500×(30÷12)×4/100
We divide 30 by 12 to convert it into years. If it were days we would divide it by 365.
Hence the answer is 250

Answer 2

let principal = x
amount =2500
si = 2500-x
si = p×r×t/100
2500 - x= x ×4 ×5/2/100
x = 25000-10x
x+10x = 25000
11x= 25000
x = 25000/11
x =2272.72
si = 2500 --2272.72
= 24727.28