সাধারণ গণিত→অধ্যায় ০১ঃ পাটি গণিত→মিশ্রণ

Tea worth Tk. 126 per kg and Tk. 135 per kg are mixed with a third variety in the ratio 1 : 1 : 2. If the mixture is worth Tk. 153 per kg, the price of the third variety per kg will be :