Two numbers are in the ratio 3 : 7 . If 6 be added to each of them, then they are in the ratio 5 : 9 Find the numbers?

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A, B and C invested capitals in the ratio of 4 : 6 : 9 At the end of the business term, they received the profit in the ratio of 2 : 3 : 5. Find the ratio of their time for which they contributed their capitals.

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A 10% monthly salary increase resulted in a Tk. 9000 per year increase in salary for an employee. What was his monthly salary before the increase ?

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A trader marks his goods at 20% above the cost price . If he allows a discount of 5% for his down payment, his profit percent for such a transaction is -

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