All of the students at a college are majoring in psychology,
business, or both. 73% of the students are psychology
majors, & 62% are business majors.
If there are 200 students, how many of them are majoring in
both psychology & business?
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Answer / guest
70 students are majoring in both, psychology & business
If 73% of the students are psychology majors, we know that
27% are not psychology majors. By the same reasoning, 38%
are not business majors, because 62% of the students do
major in business. So: 27 + 38 = 65
65% of the students are not majoring in both psychology &
business, so 35% are double majors, a total of 70 students.
| Is This Answer Correct ? | 56 Yes | 3 No |
Answer / vignesh1988i
70 students
first they have already given the total number of students...
calculate the number of psychology and business students.... then add them it will come as 270 , but total number of students are only 200... therefore the total number of students in both streams are 70...........
thank u
| Is This Answer Correct ? | 6 Yes | 2 No |
Answer / keyur
The Right Ans is 70 Students.. The ans is derived through probability.
| Is This Answer Correct ? | 6 Yes | 3 No |
Answer / dr eugene
This is an ambiguous question to which there is no unique solution. It could be that 100% of the 124 business students are also majoring in psychology, in which case the answer is 124. 70 is also a valid answer, for the reasons other people have discuseed, and any number in between.
BAD QUESTION.
| Is This Answer Correct ? | 2 Yes | 1 No |
Answer / chandulal
35..
146-35=111 psychology
124-35=89 business
111+89=200
35 study both
| Is This Answer Correct ? | 0 Yes | 4 No |
Answer / sharmeela
73% of 200 studs=146,
62% of 200 studs=124,
studs majoring in both=(146+124)/2=135
| Is This Answer Correct ? | 1 Yes | 12 No |
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