Multiple Choice Questions on The ratio of the Mother 39 s age to her daughter 39 s age is 9 5 The product of their ages is 1125 T........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

The ratio of the Mother 39 s age to her daughter 39 s age is 9 5 The product of their ages is 1125 T...........

Quant (SSC) Problems based on Ages
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    The ratio of the Mother's age to her daughter's age is 9 : 5. The product of their ages is 1125. The ratio of their ages after five years will be :

    1 : 3

    Incorrect Answer

    2 : 3

    Incorrect Answer

    3 : 4

    Incorrect Answer

    5 : 3

    Correct Answer
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    Explanation:
    Let the present ages of Mother and daughter be 9x and 5x respectively.
    9x × 5x = 1125   ⇒   45x2 = 1125 
    ⇒  x2 = 25  ⇒  x = 5.
    Required ratio  = (9x + 5) : (5x + 5)
      ⇒   50 : 30  ⇒  5 : 3.  

    By: Amit Kumar
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