9 votes 9 votes If $P = 3$, $R = 27$, $T = 243$, then $Q + S =$ ________ $40$ $80$ $90$ $110$ Analytical Aptitude gatecse-2020 analytical-aptitude logical-reasoning sequence-series 2-marks + – Arjun asked Feb 12, 2020 retagged Nov 30, 2022 by Lakshman Bhaiya Arjun 5.7k views answer comment Share Follow See all 6 Comments See all 6 6 Comments reply Show 3 previous comments Arjun commented Feb 16, 2020 reply Follow Share If you people who gave GATE dont know how can we know? In GO questions are added as per their ID. This question number is 7 and it should be 2 marks. But if GATE has changed this convention and mixed 1,2 marks for aptitude, it becomes hard. Unfortunately no one has confirmed us any. 4 votes 4 votes topper98 commented Feb 18, 2020 reply Follow Share GATE OVERFLOW is absolutely spot on. From the official gate website i found that it is of 2 marks and not 1 marks. 0 votes 0 votes Praveen Chauhan commented Mar 23, 2020 reply Follow Share Its mutiples of 3 so q=9 and s=81 And q+s=90 0 votes 0 votes Please log in or register to add a comment.
Best answer 7 votes 7 votes We can interpret the given order as: $P\to 3^1= 3$ $Q\to3^2= 9$ $R\to3^3=27$ $S\to3^4=81$ $T\to3^5=243$ $Q+S\to 9+81=90$ Hence Option (C) is correct Ashwani Kumar 2 answered Feb 12, 2020 selected Apr 15, 2021 by Arjun Ashwani Kumar 2 comment Share Follow See all 0 reply Please log in or register to add a comment.
10 votes 10 votes Alphabetical order : P, Q, R, S, T given that, P = 3 R=27 T = 343 by observing them, those are in GP with r = 3 So, Q=9, S=81 S+Q = 81+9=90 Shaik Masthan answered Feb 12, 2020 Shaik Masthan comment Share Follow See all 4 Comments See all 4 4 Comments reply Tushar Garg commented Feb 12, 2020 reply Follow Share The problem with this question is that they don't give more statements like p q,r,s,t is series so how can we say Q and S is part of series the question given is incomplete.i also answered 90 but this not the way to frame question. 1 votes 1 votes Shaik Masthan commented Feb 12, 2020 reply Follow Share Yes, ideally they have to give marks to all. 0 votes 0 votes Arjun commented Feb 13, 2020 reply Follow Share This is a typical "inference" question. It is not a technical one and information is hidden intentionally 7 votes 7 votes abichandani commented Jun 20, 2020 reply Follow Share Yes. But may be the fact that you were able to reach the solution 90 was enough for them. 0 votes 0 votes Please log in or register to add a comment.
1 votes 1 votes Q=3^2=9 s=3^4=81 Q+S=81+9=90 Mr.Dijkstra answered Apr 1, 2020 Mr.Dijkstra comment Share Follow See all 0 reply Please log in or register to add a comment.