IBPS RRB Office Assistant Mains 17 Oct 2021 Paper

Two varieties of coffee costing Rs. 180 per kg and Rs. 150 per kg are mixed in the ratios 4 : 5 and 3 : 7 to form blend T1 and T2 respectively. T1 and T2 are mixed in a certain ratio and the resulting mixture is sold at Rs. 240 per kg at a profit of 50%. What is the ratio in which T2 and T1 are mixed?