Insta–DART (Daily Aptitude and Reasoning Test) 2020 - 21
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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
Five persons fire bullets at a target at an interval of 6, 7, 8, 9 and 12 seconds respectively. The number of times they would fire the bullets together at the target in an hour is
Correct
Solution : b
LCM of 6, 7, 8, 9, 12
LCM : 2*2*2*3*3*7
= 504 seconds
2 6, 7, 8, 9, 12 2 3, 7, 4, 9, 6 2 3, 7, 2, 9, 3 3 3, 7, 1, 9, 3 3 1, 7, 1, 3, 1 7 1, 7, 1, 1, 1 1, 1, 1, 1, 1 Now One hour has = 60*60 = 3600seconds
Hence the required answers is = (60*60) / 504
= 7 times
Incorrect
Solution : b
LCM of 6, 7, 8, 9, 12
LCM : 2*2*2*3*3*7
= 504 seconds
2 6, 7, 8, 9, 12 2 3, 7, 4, 9, 6 2 3, 7, 2, 9, 3 3 3, 7, 1, 9, 3 3 1, 7, 1, 3, 1 7 1, 7, 1, 1, 1 1, 1, 1, 1, 1 Now One hour has = 60*60 = 3600seconds
Hence the required answers is = (60*60) / 504
= 7 times
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Question 2 of 5
2. Question
There are seven persons up on a ladder, A, B, C, D, E, F and G (not in that order). A is further up than E but is lower than C. B is in the middle. G is between A and B. E is between B and F. If F is between E and D, the person on the bottom step of the ladder will be
Correct
Solution : ( c )
According to question
C A G E F D ∴D is on the bottom step of the ladder.
Incorrect
Solution : ( c )
According to question
C A G E F D ∴D is on the bottom step of the ladder.
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Question 3 of 5
3. Question
Consider the following statements:
There are six villages A, B, C, D, E and F.
F is 1 km to the west of D.
B is 1 km to the east of E.
A is 2 km to the north of E.
C is 1 km to the east of A.
D is 1 km to the south of A.
Which three villages are in a line?
Correct
Solution : ( b )
Three villages are in a line = A, D, E
Incorrect
Solution : ( b )
Three villages are in a line = A, D, E
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Question 4 of 5
4. Question
Location of B is north of A and location of C is east of A. The distances AB and AC are 5 km and 12 km respectively. The shortest distance (in km) between the locations B and C is
Correct
Solution : ( b )
Using Pythogoras theorem
(BC)2 = +
= +
=169
So, BC =
= 13
Incorrect
Solution : ( b )
Using Pythogoras theorem
(BC)2 = +
= +
=169
So, BC =
= 13
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Question 5 of 5
5. Question
Two cars start towards each other, from two places A and B which are at a distance of 160 km. They start at the same time 08 : 10 AM. If the speeds of the cars are 50 km and 30 km per hour respectively, they will meet each other at
Correct
Solution : a
Total distance = 160 km
Total speed = 50 + 30
= 80 km
So they will meet after (160/80) hours = 2 hours
So, time of meet = 8: 10 a.m + 2 hours
= 10.10 a.m
Incorrect
Solution : a
Total distance = 160 km
Total speed = 50 + 30
= 80 km
So they will meet after (160/80) hours = 2 hours
So, time of meet = 8: 10 a.m + 2 hours
= 10.10 a.m
