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CAPF - Mathematical Reasoning Test 361
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CAPF - Mathematical Reasoning Test 361
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  • Question 1/5
    1 / -0.33
    If Arav finds that he is 25th from the right and 9th from the left , how many boys should be added to the queue so that there are 80 boys in the line?
    Solutions

    Clearly, number of boys in the line = (24+1+8) = 33

    Number of boys to be added = (80-33) =47

  • Question 2/5
    1 / -0.33
    The ratio of present ages of Ankita and Sunita is 13:17 respectively. Four years ago, the respective ratio of their ages was 11:15. What will be the respectively ratio of their ages after nine years hence?
    Solutions
    Let the present age of Ankita = 13x

    Present age of Sunita = 17x

    Four years ago,

    Age of Ankita = 13x-4

    Age of Sunita = 17x-4

    A.T.Q.

    Hence,

    present age of Ankita = 26

    Present age of Sunita = 34

    Nine years hence,

    Age of Ankita = 35

    Age of Sunita = 43

    Required Ratio = 35 : 43

  • Question 3/5
    1 / -0.33
    The ratio of the present ages of A and B is 7 : 5 . Sum of their present ages is 24 years. What will be the age (in years) of B after 5 years?
    Solutions

    The ratio of the present ages of A and B is 7 : 5.

    Let present age of A = 7x

    Present age of B = 5x

    A.T.Q.

    ⇒ 12x = 24 years

    ⇒ x = 2 years

    Hence, present age of B =

    The age (in years) of B after 5 years = 10 + 5 = 15 years

  • Question 4/5
    1 / -0.33
    The ratio of the ages of A and B, 10 years ago, was 4:5 . Five years ago, the ratio of their ages was 9:11 . What will be the ratio of their ages 10 years from now?
    Solutions

    Given that the ratio of the ages of A and B, 10 years ago, was 4:5.

    Case-1: 10 years ago

    Let age of A = 4x

    age of B = 5x

    Case-2: 5 years ago

    age of A = 4x+5

    age of B = 5x+5

    According to question

    ⇒

    ⇒

    ⇒ x = 10

    Case-3: 10 years from now

    age of A = 4x+20 =

    age of B = 5x+20 =

    Ratio of their ages 10 years from now = 60:70 =6:7

  • Question 5/5
    1 / -0.33
    If Arjun finds that he is 12th from the right and 4th from the left , how many boys should be added to the queue so that there are 30 boys in the line?
    Solutions

    As per the Given:

    Clearly, number of boys in the line = (11+1+3) = 15.

    Number of boys to be added = (30-15) =15

    Hence, option C is correct.

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