SOLUTION: if the fare of 12 quintal luggage for a distance of 18km is 20 rupees,how much fare be aluggage of 8 quintal for a distance of 20km?

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Question 391734: if the fare of 12 quintal luggage for a distance of 18km is 20 rupees,how much fare be aluggage of 8 quintal for a distance of 20km?
Found 2 solutions by stanbon, MathLover1:
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
if the fare of 12 quintal luggage for a distance of 18km is 20 rupees,how much fare be aluggage of 8 quintal for a distance of 20km?
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Fare, number of luggage and distance are all directly related.
f = k(nd)
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Solve for "k" using "the fare of 12 quintal luggage for a distance of 18km is 20 rupees"
20 = k(12*18)
k = 0.09259
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Equation:
f = 0.09259nd
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Solve:"how much fare be aluggage of 8 quintal for a distance of 20km?
f = 0.09259*8*20
f = 14.82 rupee
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Cheers,
Stan H.

Answer by MathLover1(20849)   (Show Source): You can put this solution on YOUR website!

given:
12 quintal luggage:18 km
8 quintal: 20 km

Price should go up with more pieces of luggage (directly proportional) and the fraction or ratio is

Price should go up with increased distance also directly proportional and the fraction (ratio) is

and then
and
so logically less luggage and less distance cost less to move

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