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5th Class Mental Ability Arithmetical Reasoning Question Bank Arithmetical Reasoning

  • question_answer
    If every 2 out of 3 readymade shirts need alterations in the collar, every 3 out of 4 need alterations in the sleeves and every 4 out of 5 need it in the body, how many alterations will be required for 60 shirts?

    A)  88                              

    B)  133

    C)  123                            

    D)  143

    Correct Answer: B

    Solution :

     Number   of   alterations required in 1 shirt \[=\frac{2}{3}+\frac{3}{4}+\frac{4}{5}=\frac{133}{60}\] Therefore, Number of alterations required in 60 shirt \[=\frac{133}{60}\times 60=133\]


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