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:
For a recuperating patient, the doctor recommended a diet containing 10% minerals and at least 30% protein. In how many different ways can we prepare this diet by mixing at least two ingredients?

Option A):
Two
Option B):
One
Option C):
Four
Option D):
Three
Option E):
None

Correct Answer is Option B):
One

Explanation:
As the diet should contain 10% minerals and only two ingredient contain 10 minerals i.e. O and Q. hence, only be mixing O and Q a diet with 10% minerals can be formed. Hence, there is only one way.