Paul's freight forwarding company charges $13 for every mirror delivered on time and $10 for every mirror delivered late. In the month of August, Paul's freight forwarding company collected $1175. For every 19 mirrors delivered, 15 were delivered on time and 4 were delivered late.

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

	On time	Late	Total
Number	15 u	4 u
Value	13	10
Total Value	195 u	40 u	235 u

(a)
Total amount collected in August
= 195 u + 40 u
= 235 u

235 u = 1175

1 u = 1175 ÷ 235 = 5

Total number of mirrors delivered on time
= 15 u
= 15 x 5
= 75

(b)
Amount that Paul's freight forwarding company collected less from each late delivery of mirrors
= 13 - 10
= $3

Number of mirrors delivered late
= 4 u 
= 4 x 5
= 20

Amount that Paul's freight forwarding company collected less from all the late deliveries of mirrors 
= 20 x 3
= $60

Answer(s): (a) 75; (b) $60