# math prob: someone plz. answer

Vikrama Sanjeeva

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Jason Menard

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Ryan McGuire

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posted 11 years ago

Assumption: Registering one student for one course is the basic unit of work. So registering one student for ten courses takes the same time as registering ten students for one course each.

300 students x 10 courses for each = 3000 studentCourses

3000 studentCourse / 4 hours = 750 studentCourse/hour

For any number of courses and students, just divide by this work rate.

Time needed = X x Y / 750 studentCourses/hour

Ryan

Originally posted by Vikrama Sanjeeva:

To enroll 300 students for 10 courses, 4 hrs is required. How mucg time is required to enroll X students for Y courses

Assumption: Registering one student for one course is the basic unit of work. So registering one student for ten courses takes the same time as registering ten students for one course each.

300 students x 10 courses for each = 3000 studentCourses

3000 studentCourse / 4 hours = 750 studentCourse/hour

For any number of courses and students, just divide by this work rate.

Time needed = X x Y / 750 studentCourses/hour

Ryan

Arjunkumar Shastry

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Ryan McGuire

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posted 11 years ago

That's what I said. (2XY/25)minutes == (XY/750)hours

edit:

And that would have clearer if I used more parentheses. I shoudl have said...

Time needed = X x Y / (750 studentCourses/hour)

...which reduces to (XY hours)/(750 Student*Courses)

...or if you leave out the student and course units... (XY/750) hours

Ryan

[ April 14, 2005: Message edited by: Ryan McGuire ]

Originally posted by Arjunkumar Shastry:

I got 2*X*Y/25 minutes.

That's what I said. (2XY/25)minutes == (XY/750)hours

edit:

And that would have clearer if I used more parentheses. I shoudl have said...

Time needed = X x Y / (750 studentCourses/hour)

...which reduces to (XY hours)/(750 Student*Courses)

...or if you leave out the student and course units... (XY/750) hours

Ryan

[ April 14, 2005: Message edited by: Ryan McGuire ]

It is sorta covered in the JavaRanch Style Guide. |