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Railways Quantitative Aptitude Simplification Sample Paper Simplification Sample Test Paper-3

  • question_answer
    A bag contains 50P, 25P and 10P coins in the ratio 2 : 3 : 4 amounting to Rs. 129. Find the number of coins of each type

    A)  120, 180, 240

    B)  180, 150, 200

    C)  200, 180, 120

    D)         180, 200, 140

    Correct Answer: A

    Solution :

    [a] Ratio of amount of coins \[=\frac{2}{2}:\frac{3}{4}:\frac{4}{10}\] \[=20:15:8\] Amount of 50p \[=\frac{129\times 20}{43}=60\] Amount of 25p \[=\frac{129\times 15}{43}=45\] Amount of 20p \[=\frac{129\times 8}{43}=24\] \[\therefore \] Number of each types of coins \[=\,\,\,60\times 2,\,\,45\times 4,\,\,24\times 10\] = 120, 180, 240


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