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6th Class Mathematics Ratio and Proportion Question Bank Ratio, Proportion & Unitary Method

  • question_answer
    A bag contains Rs. 187 in the form of 1 Rs. 50 paise and 10 paise coins in the ratio \[3:4:5\]. Find the number of 10 paise coins.

    A)  170                            

    B)  160          

    C)  136                

    D)  102

    Correct Answer: A

    Solution :

    Let rational no. be \[x\] rupee coin \[=3x\] 50 paise coin\[=4x\] 10 paise coin\[=5x\] Value of 1 rupee coin \[=3x\times 100\]paise .......... 50 paise........... \[=50\times 4x\]paise ..............10 paise ...... \[=10\times 5x\]paise A/Q, \[(300x+200x+50x)\]paise = 18700. \[\Rightarrow \]\[550x=18700\] \[\Rightarrow \]\[x=\frac{1870}{55}=34\] \[\therefore \]no. of 10 paise coin \[=34\times 5=170\]coins


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