# Quantitative Aptitude :: Profit and Loss Problems And Answers

8. A man sells an article at 20% gain. Had be sold at for Rs. 80/- more he could have gained 30% what is cost price of article

 A. Rs.500/- B. Rs.600/- C. Rs.700/- D. Rs.800/-

Explanation:
First selling price = 120 % -----> X Rupees
sold at for Rs. 80/- = 130 % -----> X + 80 Rupees
~
----------------------------------------------
10 % --------> 80
100 % ------->Rs. 800/-
OR
Short cut method :
---------------------------
Profit,Profit = -
Ptofit,Loss = +
Loss,Loss = -
Loss,Profit = +
---------------------------
OPPOSITE ==> +
SAME ===> -
----------------------------
Profit ==> 20 %
profit ==> 30%
~
----------------
10 % ---------> 80
100 % --------> Rs. 800/-

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