Question:
Balanced diet should contain 12% of proteins, 25% of fats and 63% of carbohydrates. If a child needs 2600 calories in this food daily, find in calories the amount of each of these in his daily food intake.
Solution:
In a balanced diet of 2600 calories, $12 \%$ is protein.
$\therefore$ Amount of protein in food intake $=12 \%$ of 2600
$=\frac{12}{100} \times 2600$
$=312$
Similarly, a balanced diet contain $s 25 \%$ fats.
$\therefore$ Amount of fats in food intake $=25 \%$ of 2600
$=\frac{25}{100} \times 2600$
$=650$
Similarly, a balanced diet contains $63 \%$ carbohydrates.
$\therefore$ Amount of carbohydrates in food intake $=63 \%$ of 2600
$=\frac{63}{100} \times 2600$
$=1638$