Sam's freight forwarding company charges $15 for mirrors delivered on time and $12 for mirrors delivered late. In the month of July, Sam's freight forwarding company collected $2376. For every 15 mirrors delivered, 12 were delivered on time and 3 were delivered late.

1. What was the total number of mirrors delivered late?
2. How much less money did Sam's freight forwarding company collect in July due to the late deliveries of the mirrors?

	On time	Late	Total
Number	12 u	3 u
Value	15	12
Total Value	180 u	36 u	216 u

(a)
Total amount collected in July
= 180 u + 36 u
= 216 u

216 u = 2376

1 u = 2376 ÷ 216 = 11

Total number of mirrors delivered late
= 3 u
= 3 x 11
= 33

(b)
Amount that Sam's freight forwarding company collected less from each late delivery of mirrors
= 15 - 12
= $3

Number of mirrors delivered late
= 3 u 
= 3 x 11
= 33

Amount that Sam's freight forwarding company collected less from all the late deliveries of mirrors 
= 33 x 3
= $99

Answer(s): (a) 33; (b) $99