How many kg of tea at ₹200 per kg must be mixed with 30 kg of tea at ₹250 per kg to get a mixture worth ₹220 per kg?

Correct answer: D. 45 kg

Cheaper : dearer = (250 − 220) : (220 − 200) = 3 : 2. With 30 kg of the dearer tea, the cheaper tea is 30 × 3/2 = 45 kg.

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Answer and explanation

The correct answer is D. 45 kg

Cheaper : dearer = (250 − 220) : (220 − 200) = 3 : 2. With 30 kg of the dearer tea, the cheaper tea is 30 × 3/2 = 45 kg.