the length and breadth of a rectangular piece of land are in the ratio of 5:3. the owner spent rs 3000 for surroundings it from are the sides at rs 7.50 per meter. the difference between is length and breadth is---------?

the length and breadth of a rectangular piece of land are in the ratio of 5:3. the owner spent rs 3000 for surroundings it from are the sides at rs 7.50 per meter. the difference between is length and breadth is---------?