History of Hindu Mathematics: A Source Book v1.c8.s13.62

v1.c8.s13.62

(5) "The mixed sums (capital+interest) are 50, 58 and 66, and the months (during which interests have accrued) are 5, 7 and 9 (respectively). Find out what the interest is (in each case, the capital being the same)?"¹