exam Maths Puzzle Numerical Ability

At 10am Brad headed west at 8 mph. At noon Danny headed east from the same place at 12mph. What time was it when they were 116 miles apart?

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Two cars leave an intersection at the same time. One travels north, and the other heads west traveling 10 mph faster. after 1 hour, they are 50 miles apart. What are their speeds? this year 75% of the graduating class of harriet tubman high school had taken at least 8 math courses. of the remaining class members, 60? had taken 6 or 7 math courses. what perce