Banking Quantitative Aptitude Sample Paper Quantitative Aptitude Sample Paper-30

  • question_answer
     
    A trader marked his goods at 20% above the cost price. He sold half the stock at the market price, one quarter at discount of 20% on the marked price and the rest at a discount of 40% on the market price. His total gain is

    A) 2%       

    B) 4.5%  

    C) 13.5%              

    D) 15%

    Correct Answer: A

    Solution :

                
    Let the total commodities \[=100\]             
    and CP (per commodity) = Rs. 100                
    Then, total CP= Rs. 10000                      
    Now, marked price \[=100+\frac{20}{100}\times 100=\text{Rs}\text{.}\,\,\text{120}\]    
    According to the question,                        
    50% commodity sold on market price
    \[=50\times 120=\text{Rs}\text{.}\,\,\text{6000}\]
    25% commodity sold on 20% discount
    \[=25\times \left( 120-\frac{20}{100}\times 120 \right)\]
    \[=25\times (120-24)\]
    \[=25\times 96=\text{Rs}\text{. 2400}\]
    25% commodity sold on 40% discount
    \[=25\times \left( 120-\frac{40}{100}\times 120 \right)\]
    \[=25\times (120-48)=25\times 72=\text{Rs}\text{. 1800}\]
    Hence, total selling price \[=1800+2400+6000\]
    = Rs. 10200
    \[\operatorname{Profit}=\text{SP}-\text{CP}=10200-10000=200\]
    \[\therefore \] Profit% =\[\frac{200}{10000}\,\times \,100\]= 2%
     


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