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Question

If a 20 year old girl drives her car at 25 km/h, she has to spend Rs 4/km on petrol. If she drives her car at 40km/h, the petrol cost increases to Rs 5 /km. She has Rs 200 to spend on petrol and wishes to find the maximum distance she can travel within one hour. Express the above problem as Linear Programming Problem. Write any one value reflected in the problem.

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Solution

Let the distance covered with speed of 25kmph be 'x' km
and the distance covered with speed of 40kmph be 'y' km
Total distance covered be 'z' km
The L.P.P of the above problem is
Maximize z=x+y
Subject to constraints
4x+5y200
x50+y401
x0, y0

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