Question

THE AGES OF A AND B ARE IN THE RATIO 5 : 3. AFTER 6 YEARS, THEIR AGES WILL BE IN THE RATIO 7 : 5. THE PRESENT AGE OF A IS? ​

Answer 1

Answer:

$let \: age \: of \: a \: and \: b \: be \: 5x \: and \: 3x. \\ \\ atq \\ \frac{(5x + 6)}{(3x + 6)} = \frac{7}{5} \\ = > 5(5x + 6) = 7(3x + 6) \\ = > 25x + 30 = 21x + 42 \\ = > 4x = 12 \\ = > x = 3$

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Answer 2

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