WK 5 DQ 1.docx - According to question Harry and Gary left for their trip to Nashville at 8:00am and 9:00am respectively The distance to be covered(d =

WK 5 DQ 1.docx - According to question Harry and Gary left...

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According to question, Harry and Gary left for their trip to Nashville at 8:00am and 9:00am respectively. The distance to be covered (d) = 300 mile Let, the Harry’s travelling speed be x. i.e. Harry’s travelling speed (s) = x mph The time taken by Harry (t) = d/s = 300/x hours Gary’s travelling speed (s 1 ) = (x + 10) mph The time taken by Gary (t 1 ) = d/s = 300/ (x + 10) hours Now, t – t 1 = 1 hours 300/x – 300/(x + 10) = 1 x (x + 10) = 300 (x + 10) – 300x x 2 + 10x = 300x + 3000 – 300x x 2 + 10x = 3000
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