To solve this problem, we can use the concept of weighted averages.

Let's denote the amount of rice from the first packet as x kg and from the second packet as (1-x) kg.

The total cost of the mix is given by the equation:

7.1x + 9.2(1-x) = 8

Solving this equation for x gives:

7.1x + 9.2 - 9.2x = 8

2.1x = 1.2

x = 1.2 / 2.1

x ≈ 0.57

So, the ratio of the two types of rice should be approximately 0.57 to 0.43, or 57:43 when rounded to the nearest whole number.

However, this option is not available in the given choices. Therefore, the correct answer is "NONE".

Question

To solve this problem, we can use the concept of weighted averages.

Let's denote the amount of rice from the first packet as x kg and from the second packet as (1-x) kg.

The total cost of the mix is given by the equation:

7.1x + 9.2(1-x) = 8

Solving this equation for x gives:

7.1x + 9.2 - 9.2x = 8

2.1x = 1.2

x = 1.2 / 2.1

x ≈ 0.57

So, the ratio of the two types of rice should be approximately 0.57 to 0.43, or 57:43 when rounded to the nearest whole number.

However, this option is not available in the given choices. Therefore, the correct answer is "NONE".

Knowee AI · Accepted Answer