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Direction to solve :

Percentage of students in various courses(A, B, C , D , E, F ) and percentage of girls of these

01. How many girls are in course C?
A. 44 B. 16
C. 40 D. None of these

Answer and Explanation

Answer: 16

Explanation:
Number of girls in course C = 2% of 800 = 16

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02. For which pair of courses is the number of boys the same?
A. E and F B. A and D
C. C and F D. None of these

Answer and Explanation

Answer: C and F

Explanation:
Course C and F, the number of boys is same.
In C – Total number of students: 5% of 1200 = 60
Number of girls = 2% of 800 = 16
60 – 16 = 44 boys
In F – Total number of students: 13% of 1200 = 156
Number of girls = 14% of 800 = 112
156 – 112 = 44 boys.

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03. For course E, the number of girls is how much per cent more than the boys for course E?
A. 250% B. 350%
C. 150% D. None of these

Answer and Explanation

Answer: 250%

Explanation:
From the table in above question, in the course E, number of girls
= 112
And number of boys = 32
Required percentage = 112 – 32 / 32 x 100%
80 / 32 x 100% = 250%

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04. For which course is the number of boys the minimum?
A. E B. F
C. C D. none of these

Answer and Explanation

Answer: none of these

Explanation:
in course A, there is no boy. Thus, we can say that in the course
A, the number of boys is minimum.

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05. For course D, what is the respective ratio of boys and girls?
A. 3:4 B. 4:5
C. 3:5 D. None of these

Answer and Explanation

Answer: 3:4

Explanation:
Required ratio = Number of boys in course D / Number of girls in course D
180 / 240 = 3:4

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