Questions
1) In what proportion P,Q, and S should be mixed to make a diet having at least 60% carbohydrate at the lowest per unit cost?
a) 2:1:3 b) 4:1:2 c) 2:1:4 d) 3:1:2 e) 4:1:1
2) The company is planning to launch a balanced diet required for growth needs of adolescent children. This diet must contain at least 30% each of carbohydrate and protein, no more than 25% fat and atleast 5% minerals. Which one of the following combinations of equally mixed ingredients is feasible?
a) O & P b) R & S c) P & S d) Q & R e) O & S
3) Which among the following is the formulation having the lowest cost per unit for a diet having 10% fat and at least 30% protein? The diet has to be formed by mixing two ingredients.
a) P & Q b) P& S c) P&R d) Q&S e) R&S
4) For a recuperating patient, the doctor recommended a diet containing 10% minerals and atleast 30% protein. In how many different ways can we prepare this diet by mixing at least two ingredients?
a) one b) two c) three d) four e) none of these
SOLUTION
- 1) Option (a), (c) and (d) can be eliminated directly as the proportion of P is lesser than the other 2, and the question asks for the lowest cost. Between (b) and (e), without verifying we can mark option (e) as the answer, as a 4/6 is greater than 4/7.
- 2) Based on the condition >30% carbohydrate and protein, option (a), option (b) and option (d) are eliminated. Based on the condition > 5% minerals option (d) is also ruled out. Hence answer is option (e)
- 3) P and S are the cheapest ingredients but they cannot be used together as they have 0% fat. P& Q can be eliminated as protein% will be between 20 and 30. option (c) and option (e), both containing R; can be eliminated with some basic calculation as R costs Rs 500 per unit. This leaves option (d) as the answer.
- 4) This is a 30 second answer. Only O and Q can be combined to make a mixture containing 10% minerals. Option (a)
