The value of the minimum ultimate strength according to modified Goodman relation will be

Question

A machine component is subjected to a flexural stress, which fluctuates between 300 MN/m² and –150 MN/m². Taking the yield strength = 0.55 of the ultimate strength, endurance strength = 0.50 of the ultimate strength and factor of safety to be 2, the value of the minimum ultimate strength according to modified Goodman relation will be                     

         (a) 1100 MN/m²             (b) 1075 MN/m²

         (c) 1050 MN/m²             (d) 1025 MN/m²