A tea merchant blends two teas in the ratio $3 : 2$ by weight. The first costs ₹280 per kg and the second ₹380 per kg. What is the cost per kg of the blend?

Explanation

1. 01

   Take 3 kg of the first and 2 kg of the second.

2. 02

   Cost = $3 \times 280 + 2 \times 380 = 840 + 760$ = ₹1,600 for 5 kg.

3. 03

   Cost per kg = ₹$\frac{1600}{5}$ = ₹320.