Quote:
Which one of the following diets or the combination of diets supplies more protein for every dollar?
With Data Interpretation questions, first evaluate the table or chart to determine the information provided. In this case, there are three types of food with percentages provided of fat and protein, as well as the cost for 10 grams of the food.
To determine the most protein for every dollar, take the percent of protein from the cost for 10 grams. Also, note that there is no method for combination according to the chart, so immediately logically eliminate choices D and E and avoid wasting time evaluating those options.
For food A: 10% of 10g = 1 gram of protein for $2
For food B: 20% of 10g = 2 grams of protein for $3
For food C: 30% of 10g = 3 grams of protein for $7
3/7 < 1/2 < 2/3. Therefore, the greatest ratio is for food B and the correct choice is B.