Question

answer these questions please

Answer 1

1. Formula is a = p(1-r/100)^n             --------------------- (i)

Given p = 10500, r = 5, n = 2

On submitting values in (i), we get

a = 10500(1-5/100)^1

   = 10500(95/100)

   = 9975 rs.


(2)Formula is a =  p(1+r/100)^n             ------------------ (i)

Given p = 1200000, r = 4, n = 2

On submitting values in (i) we get, 

 a = 1200000(1+4/100)^2

    =  1200000(1 + 1/25)^2

    = 1200000(26/25)^2

    = 1200000 * 26/25 * 26/25

    = 1248000 * 26/25

    = 1297920


Hope this helps!