IIFT 2018 Question Paper | Quants

The best way to boost your IIFT prep is to practice the actual IIFT Question Papers. 2IIM offers you exactly that, in a student friendly format to take value from this. In the 2018 IIFT, Quants was a mixed bag of questions of varying difficulty, with some routine questions and the others were very demanding. Some beautiful questions that laid emphasis on Learning ideas from basics and being able to comprehend more than remembering gazillion formulae and shortcuts.

Question 8 : \\frac{1}{\log _{x} y z+1}+\frac{1}{\log _{y} x z+1}+\frac{1}{\log _{x} x y+1}) = ?

1. 0
2. 1
3. xyz
4. \\frac{\log x y z}{\log x y z+1})

Explanatory Answer

1/(log_xyz+1) + 1/(log_yxz+1) + 1/(log_zxy+1)
= > logx/(logyz+logx) + logy/(logxz+logy) + logz/(logxy+logz)
= > logx/logxyz + logy/logxyz + logz/logxyz
= > logxyz/logxyz =1

The question is " \\frac{1}{\log _{x} y z+1}+\frac{1}{\log _{y} x z+1}+\frac{1}{\log _{x} x y+1}) = ? "

Hence, the answer is '1'

Choice B is the correct answer.