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Ratios and Proportions
1. The monthly salaries of two persons are in the ratio 3:5. If each of them receives and increase of $20 in the monthly salary, the ratio is altered to 13:21. Find their salaries.
5.In mixing tea, 1 kg of tea in every 100 kg is wasted. In what proportion must a dealer mix teas which cost him $24 and $18 per kg respectively so that the cost comes to $20 per kg?
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