book Maths Puzzle Numerical Ability

The marvin small manufacturing plant produces two kinds of bikes, 3-speed and 10-speed in two factories. Factory A produces 16 3-speeds and 20 10-speeds in one day, while factory

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I have home-schol curriculum and no text books. My problem is this:
At 10:00 am two planes leave an airport. If the northbound plane flies 280mph and the southbound plane at 320mph, at what time will they be 1,000 miles apart? Help??? What is the equation of the line containing the points (-3,2) and (-6,3)?