Please advise, need your help, thanks!

Assume that Jun, Camila, and Naseem are the only buyers of bananas. Their inverse demand functions are: Jun: p = 20 - Q.J Camila: p = 10 - Qc 2 Naseem: p = 5 - 4 QN where Q J, Qc, and QN are the quantities demanded by Jun, Camila, and Naseem, respectively, and p is the price of bananas. Suppose the seller of bananas does not have any costs, so the seller only cares about maximizing revenue. Because Jun, Camila, and Naseem always shop together, the seller has to charge them all the same price for bananas. At the price that maximizes revenue, how many bananas will the seller sell