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Standard XII

Biology

Balanced Diet

There are 2 f...

Question

There are 2 families A and B. There are 4 men, 6 women and 2 children in family A, and 2 men, 2 women and 4 children in family B. The recommended daily amount of calories is 2400 for men, 1900 for women, 1800 for children and 45 grams of protein for men, 55 grams, for women and 33 grams for children. Represent the above information using matrices. Using matrix multiplication, calculate the total requirement of calories and proteins for each of the 2 families. What awareness can you create among people about the balanced diet from this question ?

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Solution

The given information can be expressed as:

So 24600 calories and 576 grams of proteins are needed for Family A and 15800 calories and 332 grams of proteins are needed for Family B.

Balanced diet is of utmost importance for proper functinality and growth of our body. So people must be aware to take food which provides all the necessary nutrients.

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Q. Consider two families

A

and

B .

Suppose there are

4

men,

4

women and

4

children in family

A

and

2

men,

2

women and

2

children in family

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grams for a child.
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and the number of family members in each family is given by matrix

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B .

Suppose there are

4

men,

4

women and

4

children in family

A

and

2

men,

2

women and

2

children in family

B .

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for a man,

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for a woman,

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for a child and

45

grams of proteins for a man,

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grams for a woman and

33

grams for a child.
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