Answer:
A secretary is making an inventory of office supplies. Secretary will indicate 540 pens in inventory.
Solution:
From question, given that
Number of boxes full of blue pen in inventory = 12
Number of pen in 1 box = 45.
Secretary needs to find number of pens in inventory.
Number of pen in 1 box = 45
So number of pens in 12 box = number of pen in 1 box
12
45 x 12 = 540
Hence secretary will indicate 540 pens in inventory.