Question

p=3500 si=400 t=? r=3%

Answer 1

Hey friend

Here is your answer

SI=(P×r×t)/100

400=(3500×3×t)/100

40000/(3500×3)=t

t=3.8 years

Answer 2

let t be x
we know,
si=ptr/100
400=(3500*x*3)/100
400=105x
x=400/105=80/21=3.809