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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
Two trains each 200 m long move towards each other on parallel lines with velocities 20 km/h and 30 km/h, respectively. What is the time that elapses when they first meet until they have cleared each other?
Correct
Ans: c
Relative speed of trains = (20+30)km/h
=50 km/h = 50 * (5/18)m/s
Total relative distance = 200 + 200 = 400 m
∴Required time = (400 * 18)/(50*5) = 28.8s
Incorrect
Ans: c
Relative speed of trains = (20+30)km/h
=50 km/h = 50 * (5/18)m/s
Total relative distance = 200 + 200 = 400 m
∴Required time = (400 * 18)/(50*5) = 28.8s
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Question 2 of 5
2. Question
There are 8 consonants and 5 vowels in a word jumble. In how many ways can we form 5-letter words having three consonants and 2 vowels?
Correct
Ans : a
8C3 x 5C2 X 5 =67200
Incorrect
Ans : a
8C3 x 5C2 X 5 =67200
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Question 3 of 5
3. Question
How many 7-digit numbers are there having the digit 3 three times & the digit 0 four times?
Correct
Ans : a
7! /3! x 4! = 35
Incorrect
Ans : a
7! /3! x 4! = 35
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Question 4 of 5
4. Question
The price of rice falls by 20%. How much rice can be bought now with the money that was sufficient to buy 20 kg of rice previously?
Correct
Ans: (d)
If the price of rice has fallen by 20% the quantity would be increased by 25% (if we keep the expenditure constant.)
This means that 20 kgs would increase by 25% to 25kgs.
Incorrect
Ans: (d)
If the price of rice has fallen by 20% the quantity would be increased by 25% (if we keep the expenditure constant.)
This means that 20 kgs would increase by 25% to 25kgs.
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Question 5 of 5
5. Question
The average age of 80 students of IIM, Bangalore of the 1995 batch is 22 years. What will be the new average if we include the 20 faculty members whose average age is 37 years?
Correct
Ans: c
(80 * 22 + 20 * 37 ) /100 = 2500/100 = 25
Incorrect
Ans: c
(80 * 22 + 20 * 37 ) /100 = 2500/100 = 25
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