In what ratio tea of Rs.60 per kg should be mixed with tea of Rs. 70 pet kg so that on selling the mixture at Rs.80 per kg there is a profit of 25 percent?

3 : 2 2 : 3 5 : 2 4 : 1

3 : 2

⇒ Ratio of selling mixture = 6 : 4 = 3 : 2, Hence, tea of Rs. 60/ kg should be mixed with tea of Rs. 70/ kg in the ratio 3 : 2.