The table given below shows the nutritional and cost information for the meat (fish) and vegetable (spinach)
Per unit of fish
Per unit of spinach
Minimum requirement
Units of vitamins
5
1
13
Units of protein
10
3
16
Unit cost
Rs. 50
Rs. 20
Find a diet (i.e. units of vitamins and proteins) to meet the minimum nutritional requirement at minimum cost.