There were 45 markers originally in each box.
Step-by-step explanation:
Given,
Boxes ordered = 3 large boxes
Markers given to one teacher = 15
Markers given to 3 teachers = 15*3 = 45 markers
Remaining markers = 90
Let,
x be the original number of markers in 3 boxes.
Total markers - markers given to teachers = markers left
There were 135 markers in 3 boxes.
3 boxes = 135 markers
1 box =
There were 45 markers originally in each box.
Keywords: multiplication, addition
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