exam Maths Puzzle Numerical Ability

|4-5||m|=|32|
|1 2||n|=|-5|

Solve this matrix equation.

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exam Other Question

a passenger trains speed is 60 mph and a freight trains speed is 40 mph. the passenger train travels the same distance in 1.5 hrs less time than the freight train. how long does it write the equasion, which if plotted would be parallel to y=2x and cuts the y axis at (0,4)