2. A drone company wants to innovate their existing drone model, DEM-190. A self- sustaining high rpm rotor is considered to replace the existing attached rotor at a cost of 25,000 pesos. The cost to manufacture a single drone is 30,000 pesos, which will decrease by 15% upon the implementation of the redesign. If the company manufactures one drone per month, how long (in months) will they be able to recover the investment? (10 pts]