TRUE DISCOUNTS

TRUE DISCOUNTS

T.D -----------> True Discount P.W -----------> Present Worth S.I -----------> Simple Interest A -----------> Amount R -----------> Rate T -----------> Time 1. A = P.W + T.D 2. P.W = (100 * amount)/[100 + (R * T)] 3. T.D = (P.W * R * T)/100 4. T.D = (A * R * T)/[100(R + T)] 5. S.I on T.D = S.I - T.D 6. sum = (S.I * T.D)/(S.I - T.D) 7.When the sum is put at C.I , P.W = A/[1 + (R/100)]T 8. T.D = S.I on P.W 9. P.W = (100 * T.D)/(R * T) 10. T = (100 * T.D)/(P.W * R) 11.When the interest is at C.I , T.D = P.W[1+ (r/100)]t - P.W