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Question Number 42029 by jasno91 last updated on 17/Aug/18

Answered by MJS last updated on 17/Aug/18

6 persons pay 1800 for the rail  if the taxi isn′t cheaper for 6 than for 8 persons  they pay 2400 for the taxi  if the taxi is ((12)/8)×6=9 for 6 persons they pay  1800 for the taxi  so decide what′s preferable...

$$\mathrm{6}\:\mathrm{persons}\:\mathrm{pay}\:\mathrm{1800}\:\mathrm{for}\:\mathrm{the}\:\mathrm{rail} \\ $$$$\mathrm{if}\:\mathrm{the}\:\mathrm{taxi}\:\mathrm{isn}'\mathrm{t}\:\mathrm{cheaper}\:\mathrm{for}\:\mathrm{6}\:\mathrm{than}\:\mathrm{for}\:\mathrm{8}\:\mathrm{persons} \\ $$$$\mathrm{they}\:\mathrm{pay}\:\mathrm{2400}\:\mathrm{for}\:\mathrm{the}\:\mathrm{taxi} \\ $$$$\mathrm{if}\:\mathrm{the}\:\mathrm{taxi}\:\mathrm{is}\:\frac{\mathrm{12}}{\mathrm{8}}×\mathrm{6}=\mathrm{9}\:\mathrm{for}\:\mathrm{6}\:\mathrm{persons}\:\mathrm{they}\:\mathrm{pay} \\ $$$$\mathrm{1800}\:\mathrm{for}\:\mathrm{the}\:\mathrm{taxi} \\ $$$$\mathrm{so}\:\mathrm{decide}\:\mathrm{what}'\mathrm{s}\:\mathrm{preferable}... \\ $$

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