exam Maths Puzzle Numerical Ability

fiND FOUR CONSECUTIVE INTEGERS WHOSE SUM IS 244

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Hadley Electronics is marketing a new kind of stero. Total revenue is the total amount of money taken in. The firm determines that when it sells x stereos, it will take in 280x-0.4 if the line containing points (-8,m) and (2,1) is parallel to the line containing points (11,-1) and (7,m+1), what must be the value of m?