Let Ninad's investment =₹x ∴ Vikas's investment =₹2x and Manav's investment =₹3x Ratio of the equivalent capitals of Ninad, Vikas and Manav, respectively =x×12:2x×6:3x×4 =12x:12x:12x=1:1:1 Clearly, the profit will be shared equally. ∴ Manav's share =₹