Indian Institute of Foreign Trade 2017 Solved Paper

Solutions for questions 51 and 52: Since these questions are of data sufficiency first we need to look at the statements individually and then find the correct combination needed to answer the question.
Choice (D) Statement 1: Mohit is 5 ranks below Rashmi from the top:
This statement simply states the position of Mohit w.r.t Rashmi, using this information alone we cannot calculate the rank of Mohit from top in the over all ranking.
Statement 2: Rashmi’s rank from bottom is 44: This statement states the rank of Rashmi from bottom and thus we can calculate the rank of Rashmi from top as 70 – 44 + 1 = 27 but, there is no reference of Mohit in this statement thus, this statement is also insufficient.
Statement 3: Mohit is 5 ranks above Rashmi from the bottom: This statement alone is insufficient to find the rank of Mohit as it only states the position of Mohit with respect to Rashmi.
Now we can clearly see that in order to calculate the rank of Mohit in the overall ranking we need Statement 2 along with either Statement 1 or Statement 3:
Case 1: 1: If we use statement 2 along with statement 1: Rashmi’s rank is 27 and Mohit is 5 ranks below Rashmi so Mohit’s rank will be 27 + 5 = 32.
Case 2: If we use statement 2 along with statement 3: Rashmi’s rank is 27 and Mohit is 5 ranks above Rashmi from the bottom thus, Mohit’s rank will be 27 – 5 = 22.