BUSINESS ADMINISTRATION
BUSINESS MATHEMATICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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35
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20
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18
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15
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Detailed explanation-1: -So the number of girl students =45−27=18.
Detailed explanation-2: -In a class of 45 students, the ratio of the number of boys and girls is 4 : 5.
Detailed explanation-3: -In the classroom example, many other ratios can be made. The number of boys out of the total number of students is 10/25. The number of girls out of the total number of students is 15/25. And 15/10 is the ratio of the number of girls to the number of boys.
Detailed explanation-4: -30 divide by 5 is 6. 6 multiplied by 3 is 18. Therefore there are 18 girls in the class.
Detailed explanation-5: -of girls = (7/8)*24 = 21. For every 7 girls in the class, there are 8 boys. This means that 15 students should include 7 girls and 8 boys. Tripling this, 45 students should consist of 21 girls and 24 boys.