test yourself! practice tool\none hundred students were surveyed about whether they prefer snapchat or…

test yourself! practice tool\none hundred students were surveyed about whether they prefer snapchat or instagram. out of the 50 boys surveyed, there were 40 boys who prefer instagram. out of the 50 girls, there were 30 girls who prefer snapchat.\n| | snapchat | instagram | total |\n|--|--|--|--|\n| boys | | 40 | 50 |\n| girls | 30 | | 50 |\n| total | | | 100 |\nassuming that all students have a preference, what percent of the students surveyed were boys? %\nassuming that all students have a preference, what percent of the students surveyed were boys that prefer snapchat? % assuming that all students have a preference, what percent of the students surveyed were girls who prefer instagram? %

test yourself! practice tool\none hundred students were surveyed about whether they prefer snapchat or instagram. out of the 50 boys surveyed, there were 40 boys who prefer instagram. out of the 50 girls, there were 30 girls who prefer snapchat.\n| | snapchat | instagram | total |\n|--|--|--|--|\n| boys | | 40 | 50 |\n| girls | 30 | | 50 |\n| total | | | 100 |\nassuming that all students have a preference, what percent of the students surveyed were boys? %\nassuming that all students have a preference, what percent of the students surveyed were boys that prefer snapchat? % assuming that all students have a preference, what percent of the students surveyed were girls who prefer instagram? %

Answer

Answer:

  1. 50
  2. 10
  3. 40

Explanation:

Step1: Calculate percentage of boys

Total students = 100, Boys = 50. Percentage of boys = $\frac{50}{100}\times100 = 50%$.

Step2: Calculate percentage of boys who prefer Snapchat

Boys who prefer Snapchat = 50 - 40 = 10. Percentage = $\frac{10}{100}\times100 = 10%$.

Step3: Calculate percentage of girls who prefer Instagram

Girls = 50, Girls who prefer Instagram = 50 - 30 = 20. Percentage = $\frac{20}{100}\times100 = 40%$.