Question

In what ratio must tea worth rs. 60 per kg be mixed with tea worth rs. 65 a kg such that by selling the mixture at rs. 68.20 a kg ,there can be a gain 10%?

Answer 1

The buying price is :

100/110 × 68.20 = 62

Let the amount of tea worth rs 60 be x and the amount of tea worth rs 65 be y

The total amount is : x + y

60x + 65y = 62(x + y)

60x + 65y = 62x + 62y

65y - 62y = 62x - 60x

3y = 2x

3/2 = x / y

3 : 2