Posted by **Jayda** on Saturday, June 27, 2009 at 3:18pm.

Two fifths of the students in a class of 1200 own pc,s, how many students do not own pc's.

2/5 x 1200=480

1200-480=720 is this correct?

30% of the students who own pc's also own play stations, what fraction of the students in the school own play station?

How do i work out this part?

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