The given pie diagram shows the percentage of students in five different universities in an academic year. The table shows the ratio of male to female students and the percentage of foreign students in each university. Study the information and answer the questions that follow.
Question: 1
If the total number of students is 12,000, then what is the approximate percentage of foreign students in all the universities taken together?
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When calculating the overall percentage, ensure that you multiply the percentage for each university by the total number of students, then sum the results before finding the overall percentage.
To calculate the approximate percentage of foreign students in all universities, we will multiply the given percentages for each university with the total number of students. Then, sum them up to find the overall percentage.
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Question: 2
If there are 132 foreign students in University B, then the difference between the total number of male and female students in University D is:
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When working with ratios, ensure you properly use the given ratios to calculate the individual numbers for male and female students, then subtract them to find the difference.
The number of male and female students in University D can be calculated using the ratio of male to female students for that university. We subtract the two to find the difference.
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Question: 3
If the total number of students in all the universities is 8,000, then what is the approximate percentage of foreign students in University C to the total number of male students in B and D?
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To calculate percentages involving groups, first determine the number of students in each group and then divide by the total to find the percentage.
The total number of male students in Universities B and D can be found by using the respective ratios of male to female students and applying the total number of students. Then we calculate the percentage of foreign students in University C based on the total male students.
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Question: 4
If the difference between the number of male and female students in University E is 80, then the total number of foreign students in Universities A and D is:
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In problems involving percentages, ensure that you apply the percentage to the relevant group of students and use the correct total for each calculation.
Using the difference in male and female students in University E, and applying the foreign student percentages for Universities A and D, the total number of foreign students is calculated.
