exam Maths Puzzle Numerical Ability

Martina Leaves home at 9 A.M., bicycling at at rate of 24/mi/h. Two hours later, John leaves, driving at the rate of 48 mi/h at what time will John Catch up with Martina?

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A line passing through (4, 11) and (1, y) is parallel to a line with slope 2. What is the value of y?

Can someone show me how to work this problem out. Thanks The table lists data regarding the average salaries of several professional athletes in the years 1991 and 2001.
a) Use the data points to find a linear function that fits the da