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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.
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Question 1 of 5
1. Question
In the following charts, the first pie-chart shows the percentage distribution of total students studying in different schools and the second pie-chart shows the percentage distribution of total girl students studying in these schools. Total number of students in all the schools together is 30000 and the ratio of boys to girls is 3:2.
What is the difference between the total number of boys and the total number of girls studying in School D?
Correct
Solution: B
Total students = 30000 * 0.18 = 5400
Girls among them = 12000 * 0.14 = 1680Therefore, number of boys = 5400 – 1680 = 3720
Thus, difference = 3720 – 1680 = 2040.
Hence, option (b) is correct.
Incorrect
Solution: B
Total students = 30000 * 0.18 = 5400
Girls among them = 12000 * 0.14 = 1680Therefore, number of boys = 5400 – 1680 = 3720
Thus, difference = 3720 – 1680 = 2040.
Hence, option (b) is correct.
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Question 2 of 5
2. Question
In the following charts, the first pie-chart shows the percentage distribution of total students studying in different schools and the second pie-chart shows the percentage distribution of total girl students studying in these schools. Total number of students in all the schools together is 30000 and the ratio of boys to girls is 3:2.
The number of girls studying in School C is what percentage of the number of boys studying in School E?
Correct
Solution: D
Total students in school C = 30000 * 0.23 = 6900
Total girl students in school C = 12000 * 0.18 = 2160
Total students in school E = 30000 * 0.16 = 4800.
Total girls students in school E = 12000 * 0.20 = 2400.
Therefore, total boys students in school E = 4800 – 2400 = 2400.
Thus required percent = (2160/2400) * 100 = 90%
Hence, option (d) is correct.
Incorrect
Solution: D
Total students in school C = 30000 * 0.23 = 6900
Total girl students in school C = 12000 * 0.18 = 2160
Total students in school E = 30000 * 0.16 = 4800.
Total girls students in school E = 12000 * 0.20 = 2400.
Therefore, total boys students in school E = 4800 – 2400 = 2400.
Thus required percent = (2160/2400) * 100 = 90%
Hence, option (d) is correct.
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Question 3 of 5
3. Question
In the following charts, the first pie-chart shows the percentage distribution of total students studying in different schools and the second pie-chart shows the percentage distribution of total girl students studying in these schools. Total number of students in all the schools together is 30000 and the ratio of boys to girls is 3:2.
What is the average of the number of boys studying in school A, B and C?
Correct
Solution: D
Boys in school A = (30000 * 0.10) – (12000 * 0.15) = 1200
Boys in school B = (30000 * 0.09) – (12000 * 0.12) = 1260
Boys in school C = (30000 * 0.23) – (12000 * 0.18) = 4740.
Therefore, average = (1200+1260+4740)/3 = 2400.
Hence, option (d) is correct.
Incorrect
Solution: D
Boys in school A = (30000 * 0.10) – (12000 * 0.15) = 1200
Boys in school B = (30000 * 0.09) – (12000 * 0.12) = 1260
Boys in school C = (30000 * 0.23) – (12000 * 0.18) = 4740.
Therefore, average = (1200+1260+4740)/3 = 2400.
Hence, option (d) is correct.
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Question 4 of 5
4. Question
In the following charts, the first pie-chart shows the percentage distribution of total students studying in different schools and the second pie-chart shows the percentage distribution of total girl students studying in these schools. Total number of students in all the schools together is 30000 and the ratio of boys to girls is 3:2.
The number of girls in School F is what percentage more than the number of girls in School A?
Correct
Solution: C
The number of girls in School F = 12000 * 0.21 = 2520
The number of girls in School A = 12000 * .15 = 1800
Thus, required percent = ((2520 – 1800)/1800) * 100 = 40 %.
Hence, option (c) is correct.
Incorrect
Solution: C
The number of girls in School F = 12000 * 0.21 = 2520
The number of girls in School A = 12000 * .15 = 1800
Thus, required percent = ((2520 – 1800)/1800) * 100 = 40 %.
Hence, option (c) is correct.
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Question 5 of 5
5. Question
In the following charts, the first pie-chart shows the percentage distribution of total students studying in different schools and the second pie-chart shows the percentage distribution of total girl students studying in these schools. Total number of students in all the schools together is 30000 and the ratio of boys to girls is 3:2.
Total number of boys in School F is approximately what percentage more than the total number of boys in School D ?
Correct
Solution: B
The number of boys in School F = (30000 * 0.24) – (12000 * 0.21) = 4680
The number of boys in School D = (30000 * 0.18) – (12000 * 0.14) = 3720.
Thus, required percent = ((4680 – 3720 )/3720) * 100 = 25.8 %.
Hence, option (b) is correct.
Incorrect
Solution: B
The number of boys in School F = (30000 * 0.24) – (12000 * 0.21) = 4680
The number of boys in School D = (30000 * 0.18) – (12000 * 0.14) = 3720.
Thus, required percent = ((4680 – 3720 )/3720) * 100 = 25.8 %.
Hence, option (b) is correct.
