speed question

[Var1995]

could someone give me the solution for this?

[knowpraveen]

This must be between 41 and 50.

Min - 224.5/5.5 = 40.8 mph
Max - 225.5/4.5 = 50.11 mph

This is one way of going about the problem by popular logic. Do not know if there is a better way to go about this. But, still this should answer your question.

Chip in, if you know a better way. Thanks. =)