CONSIDER the age of A and B to be 3X : 4x, after 9 YEARS there age will be (3x + 9) and (4x + 9) which is equal to ratio 4:5.So by comparing that we will get,(3x + 9) : (4x + 9) ∷ 4 : 55 (3x + 9) = 4 (4x + 9)15x + 45 = 16x + 3645 - 36 = 16x - 15xThus x = 9Therefore x = 9, then the age of A will be 3x = 3 × 9 = 27.Thus the present age of A is 27 years.

"> CONSIDER the age of A and B to be 3X : 4x, after 9 YEARS there age will be (3x + 9) and (4x + 9) which is equal to ratio 4:5.So by comparing that we will get,(3x + 9) : (4x + 9) ∷ 4 : 55 (3x + 9) = 4 (4x + 9)15x + 45 = 16x + 3645 - 36 = 16x - 15xThus x = 9Therefore x = 9, then the age of A will be 3x = 3 × 9 = 27.Thus the present age of A is 27 years.

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Present ages of A and B are in the ratio 3 : 4 respectively. After nine years this ratio becomes 4 : 5. What is the present age (in years) of A?

Logical and Verbal Reasoning Ranking Puzzle in Logical and Verbal Reasoning . 1 month ago

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Let us CONSIDER the age of A and B to be 3X : 4x, after 9 YEARS there age will be (3x + 9) and (4x + 9) which is equal to ratio 4:5.So by comparing that we will get,(3x + 9) : (4x + 9) ∷ 4 : 55 (3x + 9) = 4 (4x + 9)15x + 45 = 16x + 3645 - 36 = 16x - 15xThus x = 9Therefore x = 9, then the age of A will be 3x = 3 × 9 = 27.Thus the present age of A is 27 years.

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