Balanced diet should contain 12% of proteins, 25% of fats and 63% of carbo-hydrates. If a child needs 2600 calories in his food daily, find in calories the amount of each of these in his daily food intake.
Ans. Proteins
312 calories, fats
650 calories, carbohydrates
1638 calories
Amount of proteins = 12% of 2600
= 2600 × 12/100
= 26 × 12
= 312 calories
Amount of fats = 25% of 2600
= 2600 × 25/100
= 26 × 25
= 650 calories
Amount of carbo-hydrates = 63% of 2600
= 2600 × 63/100
= 26 × 63
= 1638 calories
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