1919. If the risk of a flood occurring in the next 10 years is accepted to 10%, then the return period for design should be__________________? September 7, 2025 by Admin A. 1 + (0.9)010 B. 1 – (0.9)°l0 C. 1/(1-0.9°10) D. 1/(1+ 0.9010) ✅ The correct answer is option C.
