Question

All of the students at a college are majoring in psychology, business, or both. 73% of the students are psychology majors, and 62% are business majors. If there are 200 students, how many of them are majoring in both psychology and business?

Answer 1

Answer:

70 students are majoring in both, psychology & business

Explanation:

If 73% of the students are psychology majors, we know that

If 73% of the students are psychology majors, we know that27% are not psychology majors. By the same reasoning, 38%

If 73% of the students are psychology majors, we know that27% are not psychology majors. By the same reasoning, 38%are not business majors, because 62% of the students do

If 73% of the students are psychology majors, we know that27% are not psychology majors. By the same reasoning, 38%are not business majors, because 62% of the students domajor in business. So: 27 + 38 = 65

If 73% of the students are psychology majors, we know that27% are not psychology majors. By the same reasoning, 38%are not business majors, because 62% of the students domajor in business. So: 27 + 38 = 6565% of the students are not majoring in both psychology &

If 73% of the students are psychology majors, we know that27% are not psychology majors. By the same reasoning, 38%are not business majors, because 62% of the students domajor in business. So: 27 + 38 = 6565% of the students are not majoring in both psychology &business, so 35% are double majors, a total of 70 students.