SOLUTION: 402 students enrolled in a freshman-level chemistry class. By the end of the semester, 5 times the number of students passed as failed. Find the number of students who passed.
Let x be the number of those who failed.
Then the number of those who passed is 5x.
The condition says that x + 5x = 402, or 6x = 402 ====> x = = 67.
Hence, the number of those who passed is 5*67 = 335.