The ratio of the age of' Tina and Rakesh is 9 : 10 respectively. Ten years ago the ratio of their age was 4 : 5 respectively. What is the present age of Rakesh?

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BANK PO Exam (Indian Bank) 2010 click here to view all questions

The ratio of the age of' Tina and Rakesh is 9 : 10 respectively. Ten years ago the ratio of their age was 4 : 5 respectively. What is the present age of Rakesh?

A25 years

B20 years

C30 years

D24 years

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Correct answer is: 20 years Explanation: Let the present age of Tina and Rakesh be 9x and 10x years respectively. 10 years ago. $=\frac{9x-10}{10x-10}=\frac{4}{5}$ $⟹45x-50=40x-40$ $⟹5x=10⟹x=\frac{10}{5}=2$ Therefore, Rakesh's present age = 10x $=10\times 2=20\text{ years}$ Nithin ? answered Aug 14 '2022 at 21:22 All Comments

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