UPSC Civil Services 2016 Prelims General Studies Paper II

since, there are 5 questions to be attempted and each questions has two choices- True or False. Therefore, the maximum number of candidates so that none of them gives the answers to the five questions in an identical sequence is an arrangement of 2 differentoptions at 5 places.
Above figure shows that each question can be filled with 2 choices.So, required numbered of candidates =2×2×2×2 ×2=32