Directions:
A health-drink company's in R & D department is trying to make various diet formulation, which can be used for certain specific purpose. It is considering a choice of 5 alternative ingredients (O, P, Q, R and S), which can be used in different proportions in the formulations. The table below gives the composition of these ingredients. the cost per unit of each of these ingredients is as O: 150, P: 50, Q: 200, R: 500, S: 100.

Question:
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 at least 5% minerals. Which one of the following combinations of equality mixed ingredients is feasible?

Option A):
Q and R
Option B):
O and S
Option C):
R and S
Option D):
P and S
Option E):
O and P

Correct Answer is Option B):
O and S

Explanation:
As the ingredients are mixed in equal amounts, so we can take the average of the constituent % of the element used. Only O and S satisfies all the conditions.