For every two minivans there are five other cars. If there are 161 vehicles, how many are not minivans?

Question

Solving problems by finding equivalent ratios

Answer 1

If there are 2 minivans for 5 non minivans, minivans make up 2/(2+5) or 2/7 of the vehicles, and non minivans make up 5/7 of the vehicles

 

5/7 of 161 is 161*5/7 = 115

 

there are 115 non minivans

 

there are 46 minivans