Gabriel's freight forwarding company charges $19 for plates delivered on time and $17 for plates delivered late. In the month of May, Gabriel's freight forwarding company collected $3384. For every 20 plates delivered, 18 were delivered on time and 2 were delivered late.

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

	On time	Late	Total
Number	18 u	2 u
Value	19	17
Total Value	342 u	34 u	376 u

(a)
Total amount collected in May
= 342 u + 34 u
= 376 u

376 u = 3384

1 u = 3384 ÷ 376 = 9

Total number of plates delivered late
= 2 u
= 2 x 9
= 18

(b)
Amount that Gabriel's freight forwarding company collected less from each late delivery of plates
= 19 - 17
= $2

Number of plates delivered late
= 2 u 
= 2 x 9
= 18

Amount that Gabriel's freight forwarding company collected less from all the late deliveries of plates 
= 18 x 2
= $36

Answer(s): (a) 18; (b) $36