The ratio of present ages of Rangitha and Shaheen is 6:5. After 12 years the ratio of their ages will be 7:6. What is Rangitha's present age?
Let present age of Rangitha = $$6x$$ years
=> Present age of Shaheen = $$5x$$ years
According to question, => $$\frac{6x + 12}{5x + 12} = \frac{7}{6}$$
=> $$36x + 72 = 35x + 84$$
=> $$x = 84 - 72 = 12$$
$$\therefore$$ Rangitha's present age = $$6 \times 12 = 72$$ years
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