Three teas costing ₹120, ₹150 and ₹210 per kg are blended in the ratio 2 : 3 : 5. What is the price per kg of the blend?

Explanation

1. 01

   Take 10 kg of the blend: 2, 3 and 5 kg cost $240 + 450 + 1{,}050 = 1{,}740$ rupees.

2. 02

   $\frac{1{,}740}{10} = 174$ rupees per kg.