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    Question

    B is 3 years older than A and A is 7 years older than C.

    If the sum of the age of A and C is 27 years, then find the sum of the ages of all three.ย 
    A 40 years Correct Answer Incorrect Answer
    B 42 years Correct Answer Incorrect Answer
    C 47 years Correct Answer Incorrect Answer
    D 45 years Correct Answer Incorrect Answer

    Solution

    Let Cโ€™s present age be x years.ย  So, Aโ€™s present age = (x + 7) yearsย  And Bโ€™s present age = (x + 7 + 3) = (x + 10) yearsย  According to question, => x + 7 + x = 27ย  => 2x = 20 => x = 10 Required total sum = x + (x + 7) + (x + 10) = 3x + 17 = 47 yearsย ย 

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