Question

on an incoming field trip, 60 sixth graders and 48 seventh graders, will be traveling by vans to the museum. Each van will be carry the same number of students and carry only sixth graders on only seventh graders. If vans are to carry the greatest possible number of students, how many vans will be needed?

Answer 1

The greatest common factor of 60 and 48 is 12. If 12-student vans are used for transport, then (60+48)/12 = 9 vans will be needed.

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5 vans are needed for the 6th graders; 4 vans are needed for the 7th graders.