8th Class Mathematics Percentage Question Bank Percentage, Profit and Loss

  • question_answer A sells a watch to B at 20% gain, B sells it to C at 15% gain and C sells it to D at a loss of 10%. If D pays Rs. 1863 for it, then how much does A pay for it?

    A)  Rs. 2000          

    B)  Rs. 1000        

    C)  Rs. 1500          

    D)  Rs. 3000

    Correct Answer: C

    Solution :

    (c): A's \[C.P=x\] B's \[C.P=1.2x\] C's C.P\[=1.2x\times 1.15=1.38x\] D's C.P\[=1.38x\times 0.9\] Now, \[1.38x\times 0.9=1863\] \[\Rightarrow x=\frac{\cancel{1863}}{1.38\times \cancel{0.9}}=\frac{2070}{1.38}=1500/-\]


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