Hello, DivideBy0!

You misread that February phrase . . .

If the sales matrices for January and March (with twice as many cars

of each model sold in February as January) had been:

.[1 0 0], and [2 1 0]

.[4 2 3]........[6 1 4] respectively, find the sales matrix for the first quarter of the year.

The total is: .[Jan] + 2·[Jan] + [Mar]Code:Jan Feb Mar |1 0 0| |2 0 0| |2 1 0| | | + | | + | | |4 2 3| |8 4 6| |6 1 4|