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GATE 2024 MT – Question 8

General Aptitude · Quantitative Aptitude: Arithmetic and Number Computation · 2 marks · Multiple choice

A pie chart gives the macronutrient energy contributions to a 2,000 kcal diet: carbohydrates 35%, proteins 20%, unsaturated fat 20%, saturated fat 20%, and trans fat the remaining 5%. Their energy densities are given below. What total mass of fat (all three types), in grams, is consumed?

MacronutrientEnergy density (kcal/g)
Carbohydrates4
Proteins4
Unsaturated fat9
Saturated fat9
Trans fat9
  1. 44.4
  2. 77.8
  3. 100
  4. 3,600

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Correct answer: (C) 100

Explanation

Carbohydrate and protein contribute 35%+20%=55%, leaving 45% for all fats, including the remaining 5% trans fat.

Fat energy is 0.45×2000=900 kcal.

At 9 kcal/g this is **100 g, C**; energy percentage must be converted using fat’s own energy density.