CTET Class I to V 29 Dec 2021 Paper

Flora's fishing company catches 9000 kg of fresh fish every month. The selling price of fresh fish is Rs. 30/kg and the selling price of dried fish is Rs. 120/kg, but when fresh fish dried it remain $\frac{1}{3}$ of its weight. If flora sells dried fish, how much more money she will get than if she sells fresh fish?