Profit and loss

Quantitative Aptitude ( CCS)

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A person sold a Tubelight at Rs.85.25 in such a way that his percentage profit is the same as the cost price of the Tubelight. If he sells it at twice the percentage profit of his previous percentage of the profit then the new selling price will be

Rs. 110.5

Rs.115.05

Rs.115.5

Rs.110.05

Explanation:

Cp = x
Sp = x+(x²/100) = 85.25
x²+100x-8525 = 0
(x+155)(x-55) = 0
X = 55
Now sp = 55+(55×110)/100 = 55+60.50 =115.5

By: Sandeep Dubey

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