History of Hindu Mathematics: A Source Book v1.c8.s13.52

v1.c8.s13.52

Here, if the rate of interest per month for 1 be r, then $r = x₁/(c₁ t₁) = x₂/(c₂ t₂) = x₃/(c₃ t₃) =$ where x₁, x₂, x₃, . . . . . . are the interests earned on the capitals c₁, c₂, c₃, . . . . . . in t₁, t₂, t₃ . . . . . . months respectively.