Mathematics
Using properties of proportion solve:(x²-x+1)/(x²+x+1)= (112(1-x))/(104(1+x))
Related Questions
If a : b :: c : d then prove that:
a : (a - b) :: c : (c - d).
Case study:
Amit runs a grocery store in a busy neighbourhood market. He stocks two varieties of lentils.The premium quality sells at ₹ 280 per kg.
The standard quality sells at ₹ 240 per kg.
Customers in his area are price-conscious, so Amit wants to create a mixture of the two varieties that appears high quality but is also affordable. He decides to sell the mixture at ₹ 265 per kg.
In what ratio should the ₹ 240/kg and ₹ 280/kg varieties be mixed to obtain the mixture costing ₹ 265 per kg?