Question
What is the present age of mother? I. The
difference between the ages of mother and daughter is 45 years. II. The present age of daughter is 1/4thof the present age of the mother. III. The sum of the ages of mother and daughter is 75 years. In each of the following questions, a question is followed by information given in three statements. You have to study the question along with the statement and decide the information given in which of the statements is necessary to answer the question.Solution
From (II), Let the mother’s age be x and daughter’s age be (x )/4. From (I) &(II), x - (x )/4 = 45 (3x )/4 = 45 ∴x = 60 years. From (II) & (III), x + (x )/4 = 75 (5x )/4 = 75 ∴x = 60 years. From (I) & (III), x-y = 45 and x+y = 75 By solving will get the value of x i.e. the answer.
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