History of Hindu Mathematics: A Source Book v1.c8.s13.35

v1.c8.s13.35

``The interest on 30 (P) is 5 (I) for an unknown period (T), and at an unknown rate of interest (i) per 100 (c) per 1½ month (t). The mixture (m=i+T) is 12½. Find i and T."¹