exam Maths Puzzle Numerical Ability

A passenger train can travel 325 mi in the same time a freight train takes to travel 200 mi. If the speed of the passenger train is 25 mi/h faster than the speed of the freight train, find the speed of each.

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exam Other Question

what is the slope of the line that passes through the following pairs...

(-2/3, 6) (3, 9)

I know the problem is M = 9-6/3-(-2/3) Im stuck after M = 3/3-(-2/3)....can someone help me find the slope It's on page 85.I just need someone to show me step by step how to get the answer.