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Question

A person on tour has Rs 4200 for his expenses his tour for 3 days, he has 18 cut down his daily expenses by Rs.70. Find the original duration of the tour.

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Solution

Lettheoriginaldurationoftourbexdays

AmountwiththepersonisRs.4200

Dailyexpenses=Rs.4200x

Giventhat,tourextendedfor3moredays


Hencetotalnumberofdays=(x+3)days


Dailyexpenses=Rs.4200(x+3)


Bythegivenproblem,wehave


4200x4200x+3=70


4200(1x1x+3)=70


60[x+3xx(x+3)]=1


180=x2+3x


x2+3x180=0


x2+15x12x180=0


x(x+15)12(x15)=0


(x+15)(x12)=0


Hencex=12asxcannotbenegative

Thustheoriginaldurationoftouris12days.



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