Proportion - Direct & Inverse Combinations

Proportion Combos Brute Force

Ah sweet sweet proportion,  the nemesis of many a student.

"Is that the fish thing sir?"

"You're damn right it is!!"

These combination problems with 3 variables, mixture of direct and inverse, seem to be really popular in exams but hard to find examples of - so I made this. 

Beside the exam game, the mixture of direct and inverse proportion is a good chance to practice distinguishing between decisions required for each.

Used this for short windows of spaced repetition in the weeks following teaching of the skill - 5 to 10 minutes of brute force maths every few lessons!

New questions & answers every time you open.

Proportion Combos Brute Force