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Considering the alarming importance of CSAT in UPSC CSE Prelims exam and with enormous requests we received recently, InsightsIAS has started Daily CSAT Test to ensure students practice CSAT Questions on a daily basis. Regular Practice would help one overcome the fear of CSAT too.
We are naming this initiative as Insta– DART – Daily Aptitude and Reasoning Test. We hope you will be able to use DART to hit bull’s eye in CSAT paper and comfortably score 100+ even in the most difficult question paper that UPSC can give you in CSP-2021. Your peace of mind after every step of this exam is very important for us.
Looking forward to your enthusiastic participation (both in sending us questions and solving them on daily basis on this portal).
Wish you all the best ! 🙂
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Question 1 of 5
1. Question
If A+ B means A is the father of B.
If A× B means A is the sister of B.
If A$ B means A is the wife of B.
If A% B means A is the mother of B.
If A÷B means A is the son of B.
What should come in place of question mark (?), to establish that J is the brother of T in the expression: J÷P% H ? T % L
Correct
Solution: A
As per the given information, we can derive following information:
J÷P% H ? T % L can be written as
J (male) is son of P (female) who is mother of H.
T (female) is mother of C
Therefore, J is brother of H.
If J has to be brother of T, then T must be sister of H.
In symbolic we can write it as H x T.
Hence, option (a) is correct.
Incorrect
Solution: A
As per the given information, we can derive following information:
J÷P% H ? T % L can be written as
J (male) is son of P (female) who is mother of H.
T (female) is mother of C
Therefore, J is brother of H.
If J has to be brother of T, then T must be sister of H.
In symbolic we can write it as H x T.
Hence, option (a) is correct.
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Question 2 of 5
2. Question
If A+ B means A is the father of B.
If A× B means A is the sister of B.
If A$ B means A is the wife of B.
If A% B means A is the mother of B.
If A÷B means A is the son of B.
Which among the given expression indicate that M is the daughter of D?
Correct
Solution: B
L + R $ D + M × T
According to the direction D + M means D is the father of M. So, M is the daughter/ son of D
Hence, option (b) is correct.
Incorrect
Solution: B
L + R $ D + M × T
According to the direction D + M means D is the father of M. So, M is the daughter/ son of D
Hence, option (b) is correct.
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Question 3 of 5
3. Question
If A+ B means A is the father of B.
If A× B means A is the sister of B.
If A$ B means A is the wife of B.
If A% B means A is the mother of B.
If A÷B means A is the son of B.
Which among the following options is true if the expression ‘I + T % J × L ‚ K’ is definitely true?
Correct
Solution: B
K is the son-in-law of I is true
I + T % J × L ÷ K
è I is the father of T
è T is the mother of J
è J is the sister of L
è L is the son K
Hence, option (b) is correct.
Incorrect
Solution: B
K is the son-in-law of I is true
I + T % J × L ÷ K
è I is the father of T
è T is the mother of J
è J is the sister of L
è L is the son K
Hence, option (b) is correct.
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Question 4 of 5
4. Question
If A+ B means A is the father of B.
If A× B means A is the sister of B.
If A$ B means A is the wife of B.
If A% B means A is the mother of B.
If A÷B means A is the son of B.
Which among the following expression is true if Y is the son of X is definitely false?
Correct
Solution: D
By doing trial and error with all the options, option (d) is correct.
Incorrect
Solution: D
By doing trial and error with all the options, option (d) is correct.
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Question 5 of 5
5. Question
What should come in place of question mark (?), to establish that T is the sister-in-law of Q in the expression: R % T × P ? Q + V
Correct
Solution: D
R % T × P ? Q + V can be written as
è R (female) is mother of T.
è T (female) is sister of P.
Therefore, R is mother of T and P.
è Q (male) is father of V.
If T has to be the sister-in-law of Q, then P(female) has to be wife of Q.
Therefore P$Q is correct.
Therefore, option (d) is correct.
Incorrect
Solution: D
R % T × P ? Q + V can be written as
è R (female) is mother of T.
è T (female) is sister of P.
Therefore, R is mother of T and P.
è Q (male) is father of V.
If T has to be the sister-in-law of Q, then P(female) has to be wife of Q.
Therefore P$Q is correct.
Therefore, option (d) is correct.
