A school offers only 4 games. Each pupil was asked to choose one favorite game out of the 4. 0•4 chose football, 0•2 chose netball, 0•3 of the remaining chose basketball.

Question

A school offers only 4 games. Each pupil was asked to choose one favorite game out of the 4.  0•4 chose football, 0•2 chose netball, 0•3 of the remaining chose basketball.
  The rest who were 112 pupils chose hockey. What was the total number of pupils who chose football and netball?

oobleck · Answer

0.4 + 0.2 = 0.6, leaving 0.4 0.3 * 0.4 = 0.12, leaving 0.28 0.28x = 112 so there were 400 students in all Now you can answer the question ...