CAT Quantitative Ability Questions | CAT Algebra questions
CAT/1994
Question . 195
Nineteen years from now Jackson will be 3 times as old as Joseph is now. Joseph is three years younger than Jackson.
I. Johnson’s age now
II. Joseph’s age now
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Explanatory Answer
Method of solving this CAT Quantitative Ability Question from Algebra question
(d) Let present age of Jackson be x years and
present age of Joseph be y years;
then present age of Joseph = x – 3
After 19 years Jackson’s age = (x + 19) years and
Joseph’s age = (y + 19) years.
According to the question: x + 19 = 3(y + 19) or x – 3y = 38
So only from above equation x and y cannot be found.