Question

i borrowed 500 rs at a rate of 10%for a period of two years by pavan for simple interest and balaji for compound intrest for the same rate, who paid the extra intrest

Answer 1

Here, You just have to apply the formula of S.I. and C.I.
S.I. = (p*r*t)/100
i.e. (500*10*2)/100= 100.
A = p(1+r/100)^t = 500(1+10/100)^2 = 605
C.I. = 605-500 = 105
This shows
Balaji paid extra interest.