exam Maths Puzzle Numerical Ability

a train leaves a station and travels east at 72km/h. three hours later a second train leaves on a parallel track and travels at 120km/h. When will the second train overtake the first train?

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exam Other Question
Give two reasons that explain the advantage of using the quadratic formula for solving quadratic equations. whay is the point of doing this if we will never use it in life unlss you are going to be a mathamatition