The table given below shows the marked price and the value of discount of five different articles.

Selling price = Marked price - Discount

L1 = The value of average of discount of article C and D

L2 = Sum of the selling prices of all articles

What is the value of (L1 + L2)?

2956

(L1) Average of discount of articles C and D = $\frac{66 + 72}{2}$ = 69

Selling prices of articles,

A = 550 - 70 = 480

B = 650 - 75 = 575

C = 450 - 66 = 384

D = 750 - 72 = 678

E = 850 - 80 = 770

L2 = 480 + 575 + 384 + 678 + 770 = 2887

L1 + L2 = 69 + 2887 = 2956