Question

Anton surveys 80 students at his school and finds that 55% of them have mobile phones. He also finds that 98% of 50 adults have mobile phones. How many more adults than students have mobile phones?

Answer 1

5 more adults than students have phones.

Step-by-step explanation:

55% of 80 students have phones. This is:

.55 × 80, which is 44 students.

For adults, 98% of 50 is .98 × 50, which is 49.

49 adults have phones. 44 students have phones.

49 - 44 is 5

5 more adults have phones than students.

Answer 2

To find out how many more adults than students have mobile phones, compare the proportions of adults and students who have mobile phones. Anton found that 55% of 80 students have phones and 98% of 50 adults have phones. Subtracting the number of students with phones from the number of adults with phones gives 5 more adults.

Step-by-step explanation:

To find out how many more adults than students have mobile phones, we need to compare the proportions of adults and students who have mobile phones.

Anton surveyed 80 students and found that 55% of them have mobile phones. This means that 0.55 * 80 = 44 students have mobile phones.

Anton also found that 98% of the 50 adults he surveyed have mobile phones. This means that 0.98 * 50 = 49 adults have mobile phones.

To calculate the difference, we subtract the number of students with mobile phones from the number of adults with mobile phones: 49 - 44 = 5

Therefore, 5 more adults than students have mobile phones.