CSAT DAILY MISSION #31

Jul 22, 2015

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Study the following information and answer the questions that follow:

Five cities P, Q, R, S and T are connected by different modes of transportation. P and Q are connected by boat and rail. S and R are connected by bus and boat. Q and T are connected by air only. P and R are connected by boat only. T and R are connected by rail and bus.

Question 1

Which mode of transport would help a person to reach R starting from Q but without changing the modes of transport?

(A) Boat

(B) Rail

(D) Air

Question 2

If a person visits each of the places starting with P and gets back to P, which of the following places must he visit twice?

(A) Q

(B) R

(D) T

Question 3

Which of the following pairs of cities is connected by any of the routes directly without visiting a third city?

(A) P and T

(B) T and S

(D) None of these

Question 4

Which mode of transport connects more than two cities, but never connects one city to two different cities?

(A) Boat

(B) Rail

(D) Bus

Question 5

How many two digit prime numbers XY are there such that when you reverse the digits, YX is also a prime number?

(A) 8

(B) 9

(D) 12

SOLUTIONS TO DAILY CSAT MISSION # 32

1. (D) 2. (B) 3. (D) 4. (D) 5. (C)

Explanations
I don’t think any explanations are needed for yesterday’s questions. If you have doubts about a particular question, ask in a comment.

Comments

16 responses to “CSAT DAILY MISSION #31”

Amit

August 13, 2015

Hi, wont the csat mission be continued???
Admin 2

July 29, 2015
Q5. Swimming is categorised as a sport. Even boating. Which Pulkit did the previous year. Sports does not only mean cricket/football.
More importantly, just because he is doing music does not mean he likes music more than sports. Maybe he got an opportunity only for music this year.
Admin 2

July 29, 2015

Q4: There could be people outside the birdwatchers club who have cameras but no binoculars.
synchronus

July 29, 2015

@Admin
just going through past questions and had doubts here

Question 4: – why is it (D.) instead of (B.) ?

[statement 1: only those with binoculars are birdwatcher club members , i.e. all members of the club have binoculars.
statement 2: some members of bwclub have cameras.
therefore it can be concluded from 1 & 2 that all those with a camera (some members of the club) also have binoculars (required to be member of the club) , so the answer should be (B.) ? ]

Question 5: – Why not (B.) ?

[ statement 1: “Pulkit went… took part in”
statement 2: “This summer he is LOOKING FORWARD to…. where he HOPES TO….

from the choice of words in 1 & 2 can it not be concluded that he PREFERS music over sports, therefore (B.) ? ]

Let me know pls!
ABHISHEK

July 24, 2015

ABDBC
Admin 2

July 23, 2015

This was one of the more controversial answers released by UPSC. Caused a lot of consternation back then.

If he likes to sing and dance, he should be doing those every summer. Because only two instances are given here, and in both he has done some activity in the summer, while in only one has he done anything related to singing and dancing, we at ForumIAS believe (C) is a better option than (D). UPSC not giving definitive reasonings for their solutions doesn’t help anyone in some cases.
Admin 2

July 23, 2015

UPSC’s logic could be: “Because we do not know what he did two summers ago or three summers ago, we shouldn’t claim that he likes to do some activity EVERY summer”.
But we have been told to stick to only the things that are mentioned and not form assumptions of our own. Many questions come like: “If all pigeons are humans and all humans are fish, are all pigeons fish?”. Here we are not supposed to assume and ask questions as to how pigeons can be humans. We are simply to make do with whatever data has been provided.
Similarly, in #32 Question 5, we feel that candidates are not supposed to assume what Pulkit did or did not do three summers ago. Simply answer the question by drawing inferences from what has been provided. Don’t think about the stuff that has not been provided.
Admin 2

July 23, 2015

If A and B are both of the same age, how can A be the eldest? He is not elder than B in this case, so the inference that “A is the eldest” cannot be drawn.
The Warlock

July 22, 2015

A
B
D
B
B
Ashwin

July 22, 2015

Can someone explain me Ques 3 of last quiz i got it wrong.plz…
Ashwin

July 22, 2015

@Admin CM 32 – 5 Question – u gave C as answer but UPSC key tells D as the answer. this is the question of 2012,series D- Question no 27. can u clarify.
Nidhi

July 22, 2015

ABDAC
Ashwani bhati

July 22, 2015

@Admin 2,
No need for explanation to 3rd question of CSAT #32,
I got it now. How silly was that mistake 🙁 :v
Ashwani bhati

July 22, 2015

**5th – 9 (i.e B), 11 is taken as 1
Ashwani bhati

July 22, 2015

@Admin 2,
Yes,I have a doubt, please explain 3rd one of CSAT DAILY MISSION #32 🙂

Today’s:
A
B
D
B
C (If 11 is taken into account; If not, then A)
Renesh

July 22, 2015

ABDBB