SOLUTION: If the price of kerosene is increased by #6(#-NAIRA) per litre, find the new price per litre if two thirds of the new price is equal to five sevenths of the old price.
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Question 832358: If the price of kerosene is increased by #6(#-NAIRA) per litre, find the new price per litre if two thirds of the new price is equal to five sevenths of the old price.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
If the price of kerosene is increased by #6(#-NAIRA) per litre, find the new price per litre if two thirds of the new price is equal to five sevenths of the old price.
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Let original price be "x".
New price is "x+6"
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Equations:
(2/3)(x+6) = (5/7)x
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Multiply both sides by 21 to get:
14(x+6) = 15x
x = 14*6
x = #84
x+6 = #90
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Cheers,
Stan H.
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