(Solved): In one family A, there are 2 men, 2 women and 3 children. In other family B there are 3 men, 4 women ...

In one family A, there are 2 men, 2 women and 3 children. In other family B there are 3 men, 4 women and 3 children. The daily requirements for man, a woman and a child are respectively 2500 , 2000 and 1600 of calories and

, and

of proteins. Find total requirements of calories and proteins in each family by using matrix multiplication.