Anand, Bahadur, and Chander are partners sharing profits equally ($\frac{1}{3}$ each). On Chander's retirement, his entire share is acquired by Anand alone. The gaining percentage of Anand will be:

Anand acquires Chander's entire share ($\frac{1}{3}$). Chander's share of $\frac{1}{3}$ relative to himself is 100% of his outgoing interest.Alternatively, looking at the structural options for the absolute fraction gained by Anand out of total firm profit, Anand's absolute gain fraction is $\frac{1}{3}$ of the total firm's profit, which corresponds to $33.33\%$.