The number of students who wish to go on a skiing trip is twice as many as those who wish to go on a scavenger hunting trip. If there are 4000 students who wish to go on the scavenger hunting trip, how many students are there altogether?
The number of students who wish to go on the skiing trip is 2 * 4000 students = <<2*4000=8000>>8000 students.
The total number of students is 4000 students + 8000 students = <<4000+8000=12000>>12000 students.
#### 12000