Question

25. A coffee shop collected the following information regarding purchases from 110 of its customers.66 purchased coffee.40 purchased donuts.21 purchased coffee and donuts.Complete parts a) through c).a. Of those surveyed, how many purchased only coffee? (Type a whole number.)b. Of those surveyed, how many purchased only donuts? (Type a wholenumber.)c. Of those surveyed, how many did not purchase either of these items? (Type a wholenumber.)

Answer 1

The number of people that purchased coffee is 66

The number of people that purchased coffee and donuts is 21

66-21 = 45

The people who just bought just coffee is 45

The number of people who bought donuts is 40

The number of people who bought coffee and donuts is 21

40-21 = 19

19 people bought just donuts

There were 110 people surveyed

45 bought just coffee, 19 bought just donuts, 21 bought coffee and donuts, x bought something else or nothing

The total is 110

45 + 19+21+x = 110

85+x = 110

x = 110-85

x=25

25 did not purchase either of these items