GATE 2024 BT – Question 8
The pie chart presents the percentage contribution of different macronutrients to a typical 2,000 kcal diet of a person.
The typical energy density (kcal/g) of these macronutrients is given in the table.
[Figure: A pie chart titled "Macronutrient energy contribution": carbohydrates 35%, proteins 20%, unsaturated fat 20%, saturated fat 20% and trans fat 5%.]
| Macronutrient | Energy density (kcal/g) |
|---|---|
| Carbohydrates | 4 |
| Proteins | 4 |
| Unsaturated fat | 9 |
| Saturated fat | 9 |
| Trans fat | 9 |
The total fat (all three types), in grams, this person consumes is
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Correct answer: (C) 100
Explanation
The three types of fat give $20\% + 20\% + 5\% = 45\%$ of the 2,000 kcal, which is 900 kcal. At 9 kcal per gram this is $ rac{900}{9} = 100$ g.