Question

p=1280,T=2 1/2years,R=10%p.a find simple interest

Answer 1

Simple interest (SI) = PNR/100

Principle (P) = 1280

Number of years (N) = 2.5

Rate of interest (R) = 10%

Therefore, SI = 1280*2.5*10/100 = 320

Answer 2

hey mate

here is your answer

SI=p*r*t/100

SI=1280×10/100×5/2

SI=₹320

hope it's helps