There are two 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 and `1800` for children, and `45` g of proteins for men, `55` g for women and `33` g for children. Represent the above information by matrices. Using matrices multiplication, calculate the total requirement of calories and proteins for each of the `2` families.

Answer

Total requirement of calories and proteins for family A are `24600` g and `576` g, respectively. For family B are `15800` g and `332` g, respectively.