Question

question 16 step by step answer class7​

Answer 1

Answer :-

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According to Question,

$\frac{9x + 7}{4x + 7} = \frac{5 }{3} \\ \implies \: 3(9x + 7) = 5(4x + 7) \\ 27x + 21 = 20x + 35 \\ 7x = 14 \\ x = \frac{14}{7} = 2$

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$\implies \: present \: ages \\ A = 9x = 9 \times 2 = 18 \: years \\ B = 4x = 4 \times 2 = 8 \: years$

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HOPE THIS HELPS YOU!!!!!