Skip to main contentSkip to solution

Case Study

A dietician wishes to mix two types of foods in such a way that vitamin contents of the mixture contain at least 8 units of vitamin A and 10 units of vitamin C. Food 'I' contains 2 unit/kg of vitamin A and 1 unit/kg of vitamin C. Food 'II' contains 1 unit/kg of vitamin A and 2 unit/kg of vitamin C. It cost Rs.50 per kg to purchase Food 'I' and Rs 70 per kg to purchase Food 'II'

Let x kg of food 'I' and y kg of food 'II' be mixed together for daily vitamin requirement in the family at minimum cost. Based on this information answer the question:

The constraints are -

A. 2x+y≤82x + y \leq 8

B. 2x+y≥82x + y \geq 8

C. x+2y≤10x + 2y \leq 10

D. x+2y≥10x + 2y \geq 10

E. x,y≥0x, y \geq 0

Choose the correct answer from the options given below:

Solution

✅ Correct Option: 3

Vitamin A requirement: 2x+y≥82x + y \geq 8 (B). Vitamin C requirement: x+2y≥10x + 2y \geq 10 (D). Non-negativity: x,y≥0x, y \geq 0 (E). So B, D, E.

Keyboard Shortcuts

  • Left arrow: Previous question
  • Right arrow: Next question
  • S key: Jump to solution
  • Q key: Jump to question