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7th Class Mathematics Decimals and Fractions Question Bank Fractions and Decimals

  • question_answer
    Mohit and Rohit go for shopping to a mall. They bought a pair of jeans and 2 shirts.
    Store P Store Q Store R
    One pair of Jeans \[Rs.399.70\] \[Rs.449.90\] \[Rs.449.50\]
    One Shirt \[Rs.222.40\] \[Rs.224.80\] \[Rs.204.60\]
    (a) At which store should Mohit and Rohit shop to spend the least amount of money?      (b) Mohit and Rohit bought a pair of jeans from store R, 1 shirt from store P and another shirt from store Q. If they had Rs. 1000, how much will be left?                       

    A)
    A B
     S Rs.52
                   

    B)
    A B
     P Rs.53.30
                   

    C)
    A B
     Q Rs.53.30
                   

    D)
    A B
     Q Rs.65.50

    Correct Answer: B

    Solution :

              (a) Cost of a pair of jeans and 2 shirts From store P \[=Rs.\,(399.70+2\times 222.40)=Rs.\,844.50\] From store Q \[=Rs.\,(449.90+2\times 224.80)=Rs.\,899.50\] From store R \[=Rs.\,(449.50+2\times 204.60)=Rs.908.70\] \[\therefore \] Mohit and Rohit should shop from store P to spend least amount of money. (b) Cost of a pair jeans from store R + Cost of one shirt from store P + Cost of another shirt from store Q \[Rs.\,(499.50+222.40+224.80)=Rs.\,946.70\] \[\therefore \] Money left \[=Rs.\,(1000-946.7)=Rs.\,53.30\]


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