Two diesel generator sets which are independent as well as designed to operate continuously are each capable of supplying the full load requirements in specific situation. If one diesel generator has mean constant failure-rate of 9 faults per 104 h and on occurrence of each fault is out of service for fixed time of 50 h, and other diesel generator has a corresponding failure-rate of 115 faults per 104 h and an out of service time per fault of 20h, what is the mean availability, expressed as a percentage, of full load supplied?