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Doubt Clearance Thread: UPSC 2021

"When in doubt, observe and ask questions. When certain, observe at length and ask many more questions."

Created this thread as a one stop solution for all members so that all the doubts wherein any conceptual clarification is required can be solved here. 

jack_Sparrow,curious_kidand122 otherslike this
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4.2k comments

@Tempo_High_Hain Was it this question?

If you withdraw Rs. 1,00,000 in cash from your Demand Deposit Account at your bank, the immediate effect on aggregate money supply in the economy will be

[a) to reduce it by ₹ 1,00,000

[b) to increase it by ₹ 1,00,000

[c) to increase it by more than ₹ 1,00,000

[d) to leave it unchanged

I have been confused with this since 1 year. Everyone says its very easy and answer is D. Please kindly explain to my mediocre mind. I think it should be B.


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@jassikamboj16303 it's d only 



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M1 = CC + DD + OD

Ex -10 = 2 + 7 + 1

If you take out DD then CC will increase but total will be the same

Ex - 10 = 9 + 0 + 1


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@Conquer just count the number of times that these alphabets have appeared in the sequence,
a has been appeared 5 times
similary c has been appeared 4times
and b has been appeared 2 times
hence to make the sequence in logical arrangements we need to append one c and 3 b into this list.hence the answer would be cbbb.


dalpha,Conquerand1 otherslike this
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Deleted
92 SOMETHING FROM VISION KEY GOT 78.92
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How many questions got deleted any idea?
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Anyone seeing large difference w.r.t. CSAT scores?

I couldn't see mine as I had applied for IFoS too

PursuitofHappyness,
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for csat I was getting around 88, actual is 65. so confused right now.

I feel the answers for comprehension passages from coaching keys were wayyyy off

Dalinar,
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To be honest its futile to count marks based on key supplied by coaching institutes, only upsc knows what goes on with answers especially with the paper like 2020. 


Villanelle,
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Ye cutoff .51 , .55 ,  .12, .84 and few more such heavenly decimal places me kaise prakat hua h.

It's beyond my comprehension.

Please shed some light.

Ps: Sorry for bringing out here.

        Agrim maafi.

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Similarly for this question as well first we need to put e in the last so the initial 4alphabet abab similarly last four alphabet eded are there and the for the rest of the sequence count the number of b d and c you will find b 3 times c 3 times and similarly d 3 times hence we need to have b c d all one times hence answer would be b c d e.

Conquer,
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@Villanelle I guess, still shocking since I didn't have problems with PYPs. I expected to bomb Paper 1 (also seeing a huge margin there) but this has me shaken ._.


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92 SOMETHING FROM VISION KEY GOT 78.92

What I am unable to understand is how come you get 78.92. What combination of correct and wrong answers could add up to such an auspicious no.

Please tell.

I might be missing something very basic Apologies for that.

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strategy to clear CSAT based on previous knowledge has been a disaster for me in 2020, earlier more questions were asked from the passages (30-2019 to 24 -2020) while math questions increased proportionately. 

Interspersed difficult math questions coupled with time pressure ensured i gave up even on the easier ones. Today looking at the same Paper feels like i could easily score 100+ with less dependence on passages. 

Guys please help me regarding a couple of things , where do i read the following topics from/good sources etc

1. passages directives clearly explained along with examples

2. number series : like how do i know how many numbers are there whose squares have a difference of 63 (thats a bit difficult at the moment though without having a knack for it). or series ?


Conquer,Pam123
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I took the conservative figure from answer keys of 3 different coaching institutes and got almost the same marks i was expecting.

It's really strange that some people have difference of 15 marks+ from what they were expecting.


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Similarly for this question as well first we need to put e in the last so the initial 4alphabet abab similarly last four alphabet eded are there and the for the rest of the sequence count the number of b d and c you will find b 3 times c 3 times and similarly d 3 times hence we need to have b c d all one times hence answer would be b c d e.

Why won’t it be c? ababa, bcbcb, and so on?

Buddhijeevi Parsad,captainhaddock
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Deleted


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Since everyone is talking about discrepancies, last year was my first prelims. I had not prepared much and I knew I wasn't anywhere near to clearing the cut off, so I did not bother checking my CSAT scores. 


However, in November last year, I did check my CSAT scores from some coaching keys and I was getting ~78 .. I was so shocked that I had always scored more than 100 in CSAt mocks and all , so how can I get so low.. 

Turns outI actually scored 102 in CSAT.. which is wayyyyyyy morrreeee than the coaching keys... Such anomalies... Don;t know which coaching keys to trust now. .. 

In the evening only I was cribbing in front of my dad that I can't take CSAt lightly, I am scoring well.. Turns out I need to have more confidence on myself.

Villanelle,AJ_and3 otherslike this
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@Captainnerd Seems so smooth to handle this question now. Perfectly!! 


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Warning - Dont attempt vision open test 5.

what has gotten into them. their current affairs suck, their tests are so bad it would be more worthwhile to sit idle and meditate. Kuch bhi pooch rhe hai.

Archand,RaGaand4 otherslike this
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