The Final answer should be equal to 111.855

Please solve it steps by steps

An executive receives an annual salary of P157,378 and his secretary a salary of P17,080. A certain task can be performed by the executive working alone in four hours. If he delegates the task to his secretary it will require him 30 minutes to explain the work and another 45 minutes to check the finished work. Due to the unfamiliarity of the secretary to do the task, it takes her an additional time 6 hours after being instructed. If the secretary works P2,400 hours a year and the executive 3,000 hours a year. Considering salary cost only, determine the cost of performing the task if the executive delegates the work to his secretary