The weight of the cargo stowed in a number of boxes is 10 tons. The weight of each box doesn’t exceed 1 ton. What is the least number of rides the truck with the weight-bearing capacity of 3 tons has to do to securely transport the cargo?
Matrix А is a square nonsingular matrix of the third order, all elements of which are non-zero. The greater number of zeros which A can have, is equal to …