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There are two families A and …

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There are two families A and B. There are 4 men, 6 women and 2 men in family A whereas 2 men, 2 women and 4 children in family B. The recommended daily requirement for calories is Man: 2400, woman: 1900, child: 1800 and for proteins is Man: 55 gm, woman: 45 gm, child: 33 gm. In order to find the total requirement of calories and prot eins for each of the two families if we represent number of members in two families by matrix P and requirement of calories and proteins by matrix Q and do the product PQ= R (where R is the resultant matrix obtained by the product). Then answer the following: The order of the matrix P should be

Posted by Shreyas Singh 3 years, 4 months ago

CBSE > Class 12 > Mathematics

5 answers

Tushar Hooda 3 years, 4 months ago

I hope u will find it helpful

Tushar Hooda 3 years, 4 months ago

Order of matrix p be 2×3

Tushar Hooda 3 years, 4 months ago

Number of family members X=[ 4 2 6 2 2 4 ] Daily amount of calories Y= ⎣ ⎢ ⎢ ⎡ 2400 1900 1800 ⎦ ⎥ ⎥ ⎤ Daily amount of proteins Z= ⎣ ⎢ ⎢ ⎡ 45 55 33 ⎦ ⎥ ⎥ ⎤ Total requirement of calories: XY=[ 4 2 6 2 2 4 ] ⎣ ⎢ ⎢ ⎡ 2400 1900 1800 ⎦ ⎥ ⎥ ⎤ =[ 24600 15800 ] Total requirement of proteins XZ=[ 4 2 6 2 2 4 ] ⎣ ⎢ ⎢ ⎡ 45 55 33 ⎦ ⎥ ⎥ ⎤ =[ 576 332 ]

Tushar Hooda 3 years, 4 months ago

If it is 2 children then answer is :

Tushar Hooda 3 years, 4 months ago

In 2nd line is it 2 men or children

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