Question

plz answer my both the question 3rd and 4th

Answer 1

hey mate here is ur answer
3) GIVEN =
principle = ?
rate= 6 %
time =?
interest =500

METHOD =
SI = P * N * R / 100
T = 100 * P *R / SI
T =100 * 500 * 6 %/500
50000 * 6 / 500