During a baseball championship match 3,823,451 people arrived. As soon as it was half-time 2,433,315 people left the stadium. How many people stayed on to watch the match after half-time?
Some workers are assigned to paint the wall of a factory. If ^@ 7 ^@ workers can paint ^@ 543.9 \space m ^@ of the wall in an hour, then how many metres of the wall will ^@ 9 ^@ workers paint in an hour?
A wire of length 48 m is to be folded in the form of a square. If each side of a square has to be an integer (measured in metres), what is the maximum number of squares that can be formed by folding the wire.