Howard's freight forwarding company charges $12 for every plate delivered on time and $9 for every plate delivered late. In the month of March, Howard's freight forwarding company collected $1260. For every 16 plates delivered, 12 were delivered on time and 4 were delivered late.

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

	On time	Late	Total
Number	12 u	4 u
Value	12	9
Total Value	144 u	36 u	180 u

(a)
Total amount collected in March
= 144 u + 36 u
= 180 u

180 u = 1260

1 u = 1260 ÷ 180 = 7

Total number of plates delivered on time
= 12 u
= 12 x 7
= 84

(b)
Amount that Howard's freight forwarding company collected less from each late delivery of plates
= 12 - 9
= $3

Number of plates delivered late
= 4 u 
= 4 x 7
= 28

Amount that Howard's freight forwarding company collected less from all the late deliveries of plates 
= 28 x 3
= $84

Answer(s): (a) 84; (b) $84