Try this solution:
1. The pure fat for 1kg with 3% is 1*0.03;
2. The pure fat for 0.5kg with 2% is 0.5*0.02;
3. The pure fat for the mix is (1+0.5)*x;
4. If to solve the equation: 1.5*x=1*0.03+0.5*0.02, then x=2/75 *100=2.(6)%
Answer: 2.(6)%
Try this solution:
1. The pure fat for 1kg with 3% is 1*0.03;
2. The pure fat for 0.5kg with 2% is 0.5*0.02;
3. The pure fat for the mix is (1+0.5)*x;
4. If to solve the equation: 1.5*x=1*0.03+0.5*0.02, then x=2/75 *100=2.(6)%
Answer: 2.(6)%