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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
Weather disasters are being affected by climate change that is caused by humans. The devastation is worsened by the collective failure of governments and businesses to invest in building resilience despite the evidence on runaway climate change.
Which of the following is the most logical and rational inference that can be made from the above passage?
Correct
Ans. B. Statement A is wrong as the passage as the focus of the passage is not on understanding the reason why climate change occurs but the focus is on highlighting the issues in our response to disasters caused by climate change. Statement C is extraneous to the passage. Involvement of communities is the not the topic of discussion as per the passage. Hence B is the most logical and rational inference.
Incorrect
Ans. B. Statement A is wrong as the passage as the focus of the passage is not on understanding the reason why climate change occurs but the focus is on highlighting the issues in our response to disasters caused by climate change. Statement C is extraneous to the passage. Involvement of communities is the not the topic of discussion as per the passage. Hence B is the most logical and rational inference.
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Question 2 of 5
2. Question
Mr. Bhatti walks to work at a uniform speed of 4 Kmph. The time taken to cover the first 70% of the distance is 30 minutes more than the time taken to cover the remaining distance. How far is his office?
Correct
Solution: A
Let total distance to office = x km, while the uniform Speed = 4 kmph.
Time to cover first 0.7x distance is 30 min or 1/2 hour more than time to cover the rest of the distance,
i.e. 0.3x.
Time = distance / speed
Or 0.7x/4 = 0.3x/4 + ½
Or 0.4x/4= ½
Or x= 5 kmHence, option(a) is correct.
Incorrect
Solution: A
Let total distance to office = x km, while the uniform Speed = 4 kmph.
Time to cover first 0.7x distance is 30 min or 1/2 hour more than time to cover the rest of the distance,
i.e. 0.3x.
Time = distance / speed
Or 0.7x/4 = 0.3x/4 + ½
Or 0.4x/4= ½
Or x= 5 kmHence, option(a) is correct.
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Question 3 of 5
3. Question
Mr. Punctual drives to his office situated 60 km from his residence. Though he always reaches office on time, one day his car developed a glitch which reduced its speed by 20%, which made him late by 10 minutes. What is the
normal speed of his car?Correct
Solution: B
The speed gets reduced by 20%. Hence, the time taken to reach office will increase by 25%. As the distance is speed*time and is constant, if the speed is decreased the time should increase in the same proportion. (0.8 x 1.25 = 1)
Now, 25% increase in time is equivalent to 10 minutes. Hence, 100% is equivalent to 40 minutes.Hence, his original speed = Total distance/Original time = 60/40 = 1.5 Km/minute = 90 Km/hr
Hence, option(b) is correct.
Incorrect
Solution: B
The speed gets reduced by 20%. Hence, the time taken to reach office will increase by 25%. As the distance is speed*time and is constant, if the speed is decreased the time should increase in the same proportion. (0.8 x 1.25 = 1)
Now, 25% increase in time is equivalent to 10 minutes. Hence, 100% is equivalent to 40 minutes.Hence, his original speed = Total distance/Original time = 60/40 = 1.5 Km/minute = 90 Km/hr
Hence, option(b) is correct.
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Question 4 of 5
4. Question
Two taps take 12 hours to fill a tank upto 80% of its capacity. After that one of the taps is closed. How much more time will the other tap take to fill the tank completely?
Correct
Solution:D
It takes 12 hours for a couple of taps to fill a tank upto 80% of its capacity.
Hence, time taken to fill the tank fully = (12/80) × 100 = 15 hours.So it takes 3 more hours to fill in the tank. However, if one of the tap is closed, it must take double that time, i.e., 6 hours to fill up the tank upto the rim.
Hence, option(d) is correct.
Incorrect
Solution:D
It takes 12 hours for a couple of taps to fill a tank upto 80% of its capacity.
Hence, time taken to fill the tank fully = (12/80) × 100 = 15 hours.So it takes 3 more hours to fill in the tank. However, if one of the tap is closed, it must take double that time, i.e., 6 hours to fill up the tank upto the rim.
Hence, option(d) is correct.
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Question 5 of 5
5. Question
If Milkha runs 1600 m in 10 minutes and PT Usha runs 600 m in 5 minutes at a uniform speed, then what is the ratio of the distances
that they travel in one minute?Correct
Solution: A
Speed of Milkha = Distance/time = 1600/10 = 160 m/minute
Similarly, speed of PT Usha = 600/5 = 120 m/minute
Ratio of distances run by them in the same time will be the same as the ratio of their speeds.
So the required ratio = 160/120 = 4:3.Hence, option(a) is correct.
Incorrect
Solution: A
Speed of Milkha = Distance/time = 1600/10 = 160 m/minute
Similarly, speed of PT Usha = 600/5 = 120 m/minute
Ratio of distances run by them in the same time will be the same as the ratio of their speeds.
So the required ratio = 160/120 = 4:3.Hence, option(a) is correct.
