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q1. if 60 male students in a high school use any kind of tobacco product, how many female students does the school have? a. fewer than 250 b. around 260 c. around 280 d. around 290 e. more than 320 q2. in a high school with 300 male students, of whom 20 use both electronic and regular cigarettes, how many male students use only one of them? a. 15 b. 63 c. 20 d. 23 e. 43 q3. if there are 100 students using any kind of tobacco product in a school where the number of male students is twice the number of female students, how many of the school's female students are using electronic cigarettes? a. 7 b. 34 c. 12 d. 17 e. 39