A four-unit class expects each student to dedicate 10 hours a week to studying for the course. How many hours should a student expect to study for a particular class that is worth six units?

Question

bibby · Answer

Set up a proportion$$\huge \frac{ 4unit  }{ 10hours }= \frac{ ? }{ ? }$$
what goes on the right side?

gorv · Answer

first find no of hour dedicated to one unit 
that is = no of hoers dedicated / no of units

no of hour dedicated to one unit =10/4=5/2
for 6 unit multiply it with 6
=(5/2)*6=15 hr/week
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