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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
What is the number of Female mobile users of LG brand in City C?
Correct
Solution: D
Number of Female mobile users of LG brand in City C = 40000 * (54/100)
= 21,600
Hence, option (d) is correct.
Incorrect
Solution: D
Number of Female mobile users of LG brand in City C = 40000 * (54/100)
= 21,600
Hence, option (d) is correct.
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Question 2 of 5
2. Question
What is the total number of non-female users of Nokia brand in all the cities?
Correct
Solution: C
Total number of non-female users of Nokia brand from all the cities
= 45 * 0.49 + 30 * 0.52 + 75 * 0.55 + 20 * 0.5 + 90 * 0.45 + 50 * 0.58 thousand
= 22.05 + 15.6 + 41.25 + 10 + 40.5 + 29
= 158.4 thousand = 1,58,400Hence, option (c) is correct.
Incorrect
Solution: C
Total number of non-female users of Nokia brand from all the cities
= 45 * 0.49 + 30 * 0.52 + 75 * 0.55 + 20 * 0.5 + 90 * 0.45 + 50 * 0.58 thousand
= 22.05 + 15.6 + 41.25 + 10 + 40.5 + 29
= 158.4 thousand = 1,58,400Hence, option (c) is correct.
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Question 3 of 5
3. Question
What is the difference between the average number of Samsung mobile users and the average number of LG mobile users in all the six cities together?
Correct
Solution: C
The average number of Samsung mobile users in all the six cities together is
= (32+72+50+36+80+75) thosand/6 = 57,500.
The average number of LG mobile users in all the six cities together is
= (40+60+40+40+64+80)thousand/6 = 324/6 = 54,000
Therefore, the difference between the average number of Samsung mobile users and the average number of LG mobile users in all the six cities together
= 57,500 – 54,000 = 3500.
Hence, option (c) is correct.
Incorrect
Solution: C
The average number of Samsung mobile users in all the six cities together is
= (32+72+50+36+80+75) thosand/6 = 57,500.
The average number of LG mobile users in all the six cities together is
= (40+60+40+40+64+80)thousand/6 = 324/6 = 54,000
Therefore, the difference between the average number of Samsung mobile users and the average number of LG mobile users in all the six cities together
= 57,500 – 54,000 = 3500.
Hence, option (c) is correct.
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Question 4 of 5
4. Question
The number of Female Samsung users in City A and B together is approximately what percentage of the total number of non-female LG users in City C and D together?
Correct
Solution: A
Female Samsung users of A and B together
= 32 * 0.45 + 72 * 0.42
= 14.4 + 30.24 = 44.64 thousand = 44,640Non-female LG users of C and D together
= 40 * 0.46 + 40 * 0.61 = 18.4 + 24.4 = 42.8 thousand = 42,800Therefore, required percent is (44,640/42,800) * 100
= 104. 3 %
Hence, option (a) is correct.
Incorrect
Solution: A
Female Samsung users of A and B together
= 32 * 0.45 + 72 * 0.42
= 14.4 + 30.24 = 44.64 thousand = 44,640Non-female LG users of C and D together
= 40 * 0.46 + 40 * 0.61 = 18.4 + 24.4 = 42.8 thousand = 42,800Therefore, required percent is (44,640/42,800) * 100
= 104. 3 %
Hence, option (a) is correct.
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Question 5 of 5
5. Question
The number of non-female Nokia users in City E is approximately what percentage more than the number of Female Nokia users in City F?
Correct
Solution: B
Non-female users of Nokia in City E = 90 * 0.45 = 40,500
Female users of Nokia in City F = 50 * 0.42 = 21000.Therefore, required percent = ((40500-21000)/21000) * 100 = 93 %.
Hence, option (b) is correct.
Incorrect
Solution: B
Non-female users of Nokia in City E = 90 * 0.45 = 40,500
Female users of Nokia in City F = 50 * 0.42 = 21000.Therefore, required percent = ((40500-21000)/21000) * 100 = 93 %.
Hence, option (b) is correct.
