Sagar gave a house contract to a contractor and his partner at Rs. 1400 / square feet. The shape of house is rectangular. Contractor is 50% more experience than his partner. They both are decided that they will distribute the profit according to their experience. If their expense for making the house is Rs.  1200 / square feet, then find the contractor’s profit. The length of the house is 70 feet and width of house is 20 feet.