7th Class Mathematics Comparing Quantities Question Bank Comparing Quantities

  • question_answer
    Select the INCORRECT match.

    A)
    Item S.P. (Rs.) Profit/loss C.P. (Rs.)
    Pen 96 20% profit 80
                   

    B)
    Item S.P. (Rs.) Profit/loss C.P. (Rs.)
    Sofa 7000 \[12{\scriptstyle{}^{1}/{}_{2}}\] loss 8000
                   

    C)
    Item S.P. (Rs.) Profit/loss C.P. (Rs.)
    Wooden shelf 6786 13% loss 7812
                   

    D)
    Item S.P. (Rs.) Profit/loss C.P. (Rs.)
    Tea set 1526 9% gain 1400

    Correct Answer: C

    Solution :

    [A] S.P.= Rs. 96, C.P. = Rs. 80 \[\therefore \]  Profit % \[=\left( \frac{S.P.-C.P.}{C.P.}\times 100 \right)\] \[=\left( \frac{96-80}{80}\times 100 \right)=\left( \frac{16}{80}\times 100 \right)=20%\] [B] S.P. =Rs. 7000, C.P. = Rs. 8000      \[\therefore \]  Loss % \[=\left( \frac{7812-6786}{7812}\times 100 \right)\] \[=\left( \frac{1026}{7812}\times 100 \right)=13\frac{29}{217}%\] [D] S.P= Rs.1526, C.P. = Rs.1400             \[\therefore \]  Profit % \[=\left( \frac{1526-1400}{1400}\times 100 \right)\]             \[=\left( \frac{126}{1400}\times 100 \right)=9%\]                


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