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A 70 kg tea powder contains mixture from two qualities. Some amount of quality 1 tea powder is added so that ratio of quality 1 to quality 2 becomes 5 : 4. What is the extra amount of of quality 2 to be added so that, quality 2 becomes double the amount of quality 1 in new mixture. Given: current quality 1 exceeds quality 2 in old mixture by 10 kg?

A 70 kg tea powder contains mixture from two qualities. Some amount of quality 1 tea powder is added so that ratio of quality 1 to quality 2 becomes 5 : 4. What is the extra amount of of quality 2 to be added so that, quality 2 becomes double the amount of quality 1 in new mixture. Given: current quality 1 exceeds quality 2 in old mixture by 10 kg? Correct Answer 60 kg

Let the initial ratio be x : y

New ratio 5 : 4

Amount of Quality 2 is remained constant. So from the problem it can be derived that, in new mixture amount of quality 1 and quality 2 are 50 kg and 40 kg. So 20 kg of quality 1 is added. Initial ratio was 3 : 4

To make quality 2 double than quality 1, total amount of quality 2 should be 100 kg. So extra amount to be added = 60 kg

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